bump 7.4.1

fix ._ files (#907 )
remove video
2026-04-15 05:28:49 +00:00 · 2025-04-18 22:13:26 -07:00 · 2025-04-18 21:52:26 -07:00 · 2025-04-17 21:58:18 -07:00 · 2025-04-17 21:57:19 -07:00 · 2025-04-17 09:53:40 -07:00
19 changed files with 1055 additions and 724 deletions
--- a/.github/workflows/package-windows-with-docker.yml
+++ b/.github/workflows/package-windows-with-docker.yml
@@ -40,11 +40,26 @@ jobs:
          version_built=$(cat kindlecomicconverter/__init__.py | grep version | awk '{print $3}' | sed "s/[^.0-9b]//g")
          mv dist/windows/kcc-c2e.exe dist/windows/KCC_c2e_${version_built}.exe 
          mv dist/windows/kcc-c2p.exe dist/windows/KCC_c2p_${version_built}.exe
-      - name: upload build
+
+      - name: upload-unsigned-artifact
+        id: upload-unsigned-artifact
        uses: actions/upload-artifact@v4
        with:
          name: windows-build
          path: dist/windows/*.exe
+      
+      - id: optional_step_id
+        uses: signpath/github-action-submit-signing-request@v1.1
+        if: ${{ github.repository == 'ciromattia/kcc' }}
+        with:
+          api-token: '${{ secrets.SIGNPATH_API_TOKEN }}'
+          organization-id: '1dc1bad6-4a8c-4f85-af30-5c5d3d392ea6'
+          project-slug: 'kcc'
+          signing-policy-slug: 'release-signing'
+          github-artifact-id: '${{ steps.upload-unsigned-artifact.outputs.artifact-id }}'
+          wait-for-completion: true
+          output-artifact-directory: 'dist/windows/'
+      
      - name: Release
        uses: softprops/action-gh-release@v2
        if: startsWith(github.ref, 'refs/tags/')
@@ -52,6 +67,5 @@ jobs:
          prerelease: true
          generate_release_notes: true
          files: |
-            CHANGELOG.md
            LICENSE.txt
            dist/windows/*.exe
--- a/.github/workflows/package-windows.yml
+++ b/.github/workflows/package-windows.yml
@@ -41,11 +41,23 @@ jobs:
      - name: build binary
        run: |
          python setup.py build_binary
-      - name: upload build
+      - name: upload-unsigned-artifact
+        id: upload-unsigned-artifact
        uses: actions/upload-artifact@v4
        with:
          name: windows-build
          path: dist/*.exe
+      - id: optional_step_id
+        uses: signpath/github-action-submit-signing-request@v1.1
+        if: ${{ github.repository == 'ciromattia/kcc' }}
+        with:
+         api-token: '${{ secrets.SIGNPATH_API_TOKEN }}'
+         organization-id: '1dc1bad6-4a8c-4f85-af30-5c5d3d392ea6'
+         project-slug: 'kcc'
+         signing-policy-slug: 'release-signing'
+         github-artifact-id: '${{ steps.upload-unsigned-artifact.outputs.artifact-id }}'
+         wait-for-completion: true
+         output-artifact-directory: 'dist/'
      - name: Release
        uses: softprops/action-gh-release@v2
        if: startsWith(github.ref, 'refs/tags/')
@@ -53,6 +65,5 @@ jobs:
          prerelease: true
          generate_release_notes: true
          files: |
-            CHANGELOG.md
            LICENSE.txt
-            dist/*.exe
+            dist/*.exe
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,30 +0,0 @@
-matrix:
-  include:
-  - os: osx
-    language: generic
-    osx_image: xcode11.1
-
-before_install:
- pip3 install --upgrade pip setuptools wheel
-
-install:
- pip3 install -r requirements.txt
- pip3 install certifi https://github.com/pyinstaller/pyinstaller/archive/develop.zip
- npm install -g appdmg
-
-script: python3 setup.py build_binary
-
-before_deploy:
- shopt -s extglob
- rm -r dist/!(*.deb|*.dmg)
-
-deploy:
-  provider: gcs
-  access_key_id: GOOG1EC62457RKUYFR2TIZUWV4EFSV2EP5LVLPPFXUAKADWJFDYPFW63BQSLA
-  secret_access_key:
-    secure: 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
-  bucket: kcc-deploy
-  local-dir: dist
-  skip_cleanup: true
-  on:
-    repo: AcidWeb/KCC
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,8 +1,9 @@
 ISC LICENSE

-Copyright (c) 2012-2014 Ciro Mattia Gonano <ciromattia@gmail.com>
+Copyright (c) 2012-2025 Ciro Mattia Gonano <ciromattia@gmail.com>
 Copyright (c) 2013-2019 Paweł Jastrzębski <pawelj@iosphe.re>
-Copyright (c) 2021-2023 Darodi
+Copyright (c) 2021-2023 Darodi (https://github.com/darodi)
+Copyright (c) 2023-2025 Alex Xu (https://github.com/axu2)

 Permission to use, copy, modify, and/or distribute this software for
 any purpose with or without fee is hereby granted, provided that the
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1 +0,0 @@
-exclude kindlecomicconverter/sentry.py
--- a/README.md
+++ b/README.md
@@ -5,11 +5,17 @@
 [![GitHub release](https://img.shields.io/github/release/ciromattia/kcc.svg)](https://github.com/ciromattia/kcc/releases)
 [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/ciromattia/kcc/docker-publish.yml?label=docker%20build)](https://github.com/ciromattia/kcc/pkgs/container/kcc)

+**Kindle Comic Converter** optimizes comics and manga for eink readers like Kindle, Kobo, ReMarkable, and more. 
+Its main feature is various optional image processing steps to look good on eink screens, 
+which have different requirements than normal LCD screens.
+It also does filesize optimization by downscaling to your specific device's screen resolution,
+which can improve performance on underpowered ereaders. 
+Supported input formats include folders/CBZ/CBR/PDF of JPG/PNG files and more.
+Supported output formats include MOBI/AZW3, EPUB, KEPUB, and CBZ.

-**Kindle Comic Converter** is a Python app to convert comic/manga files or folders to EPUB, Panel View MOBI or E-Ink optimized CBZ.
-It was initially developed for Kindle but since version 4.6 it outputs valid EPUB 3.0 so _**despite its name, KCC is
-actually a comic/manga to EPUB converter that every e-reader owner can happily use**_.
-It can also optionally optimize images by applying a number of transformations.
+![image](https://github.com/user-attachments/assets/36ad2131-6677-4559-bd6f-314a90c27218)
+
+YouTube tutorial (please subscribe): https://www.youtube.com/watch?v=IR2Fhcm9658

 ### A word of warning
 **KCC** _is not_ [Amazon's Kindle Comic Creator](http://www.amazon.com/gp/feature.html?ie=UTF8&docId=1001103761) nor is in any way endorsed by Amazon.
@@ -22,15 +28,22 @@ If you have some **technical** problems using KCC please [file an issue here](ht
 If you can fix an open issue, fork & make a pull request.

 If you find **KCC** valuable you can consider donating to the authors:
- Ciro Mattia Gonano (founder, active 2013-2014):
-  - [![Donate PayPal](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=D8WNYNPBGDAS2)
-  - [![Donate Flattr](https://img.shields.io/badge/Donate-Flattr-green.svg)](http://flattr.com/thing/2260449/ciromattiakcc-on-GitHub)
- Paweł Jastrzębski (active 2013-2019):
-  - [![Donate PayPal](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=YTTJ4LK2JDHPS)
-  - [![Donate Bitcoin](https://img.shields.io/badge/Donate-Bitcoin-green.svg)](https://jastrzeb.ski/donate/)
- Alex Xu (active 2023-Present)
-  - [![Donate PayPal](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/donate/?business=QFJVE7A6LCP6U&no_recurring=0&item_name=Kindle+Comic+Converter&currency_code=USD)
+- Ciro Mattia Gonano (founder, active 2012-2014):

+  [![Donate PayPal](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=D8WNYNPBGDAS2)
+
+- Paweł Jastrzębski (active 2013-2019):
+
+  [![Donate PayPal](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=YTTJ4LK2JDHPS)
+  [![Donate Bitcoin](https://img.shields.io/badge/Donate-Bitcoin-green.svg)](https://jastrzeb.ski/donate/)
+
+- Alex Xu (active 2023-Present)
+
+  [![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/Q5Q41BW8HS)
+
+## Sponsors
+
+- Free code signing on Windows provided by [SignPath.io](https://about.signpath.io/), certificate by [SignPath Foundation](https://signpath.org/)

 ## DOWNLOADS

@@ -55,6 +68,12 @@ For flatpak, Docker, and AppImage versions, refer to the wiki: https://github.co
 - [Windows 7 support](https://github.com/ciromattia/kcc/issues/678)
 - [Combine files/chapters](https://github.com/ciromattia/kcc/issues/612#issuecomment-2117985011)
 - [Flatpak mobi conversion stuck](https://github.com/ciromattia/kcc/wiki/Installation#linux)
+- Image too dark?
+  - The default gamma correction of 1.8 makes the image darker, and is useful for faded/gray artwork/text. Disable by setting gamma = 1.0
+- [Better PDF support (Humble Bundle, Fanatical, etc)](https://github.com/ciromattia/kcc/issues/680)
+- Cannot connect Kindle Scribe or 2024+ Kindle to macOS
+  - Use official MTP [Amazon USB File Transfer app](https://www.amazon.com/gp/help/customer/display.html/ref=hp_Connect_USB_MTP?nodeId=TCUBEdEkbIhK07ysFu)
+    (no login required). Works much better than previously recommended Android File Transfer. Cannot run simutaneously with other transfer apps.

 ## PREREQUISITES

@@ -68,9 +87,11 @@ If you have issues detecting it, get stuck on the MOBI conversion step, or use L

 ### 7-Zip

-This is only required for certain files and advanced features. 
+This is optional but will make conversions much faster.

-KCC will ask you to install if needed. 
+This is required for certain files and advanced features. 
+
+KCC will ask you to install if needed.

 Refer to the wiki to install: https://github.com/ciromattia/kcc/wiki/Installation#7-zip

@@ -161,6 +182,7 @@ PROCESSING:
                        Set cropping mode. 0: Disabled 1: Margins 2: Margins + page numbers [Default=2]
  --cp CROPPINGP, --croppingpower CROPPINGP
                        Set cropping power [Default=1.0]
+  --preservemargin      After calculating crop, "back up" a specified percentage amount [Default=0]
  --cm CROPPINGM, --croppingminimum CROPPINGM
                        Set cropping minimum area ratio [Default=0.0]
  --ipc INTERPANELCROP, --interpanelcrop INTERPANELCROP
@@ -234,6 +256,9 @@ Then use the `gen_ui_files` scripts to autogenerate the python UI.

 An example PR adding a new checkbox is here: https://github.com/ciromattia/kcc/pull/785

+Do not use `git merge` to merge master from upstream, 
+use the "Sync fork" button on your fork on GitHub in your branch 
+to avoid weird looking merges in pull requests.

 ### Windows install from source

@@ -317,5 +342,5 @@ The app relies and includes the following scripts:
 Please check [wiki page](https://github.com/ciromattia/kcc/wiki/Known-issues).

 ## COPYRIGHT
-Copyright (c) 2012-2023 Ciro Mattia Gonano, Paweł Jastrzębski and Darodi.
+Copyright (c) 2012-2025 Ciro Mattia Gonano, Paweł Jastrzębski, Darodi and Alex Xu.
 **KCC** is released under ISC LICENSE; see [LICENSE.txt](./LICENSE.txt) for further details.
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,14 +0,0 @@
-environment:
-  PYTHON: "C:\\Python37-x64"
-
-install:
-  - set PATH="%PYTHON%\\Scripts";%PATH%
-  - "%PYTHON%\\python.exe -m pip install --upgrade pip setuptools wheel"
-  - "%PYTHON%\\python.exe -m pip install -r requirements.txt"
-  - "%PYTHON%\\python.exe -m pip install certifi https://github.com/pyinstaller/pyinstaller/archive/develop.zip"
-
-build_script:
-    - "%PYTHON%\\python.exe setup.py build_binary"
-
-artifacts:
-  - path: dist\KCC*
--- a/gui/KCC.ui
+++ b/gui/KCC.ui
@@ -6,8 +6,8 @@
   <rect>
    <x>0</x>
    <y>0</y>
-    <width>482</width>
-    <height>448</height>
+    <width>519</width>
+    <height>572</height>
   </rect>
  </property>
  <property name="windowTitle">
@@ -22,6 +22,379 @@
    <property name="bottomMargin">
     <number>5</number>
    </property>
+    <item row="2" column="0" colspan="2">
+     <widget class="QListWidget" name="jobList">
+      <property name="styleSheet">
+       <string notr="true"/>
+      </property>
+      <property name="selectionMode">
+       <enum>QAbstractItemView::SelectionMode::NoSelection</enum>
+      </property>
+      <property name="verticalScrollMode">
+       <enum>QAbstractItemView::ScrollMode::ScrollPerPixel</enum>
+      </property>
+      <property name="horizontalScrollMode">
+       <enum>QAbstractItemView::ScrollMode::ScrollPerPixel</enum>
+      </property>
+     </widget>
+    </item>
+    <item row="0" column="0" colspan="2">
+     <widget class="QWidget" name="toolWidget" native="true">
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <property name="leftMargin">
+        <number>0</number>
+       </property>
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <property name="rightMargin">
+        <number>0</number>
+       </property>
+       <property name="bottomMargin">
+        <number>0</number>
+       </property>
+       <item>
+        <widget class="QPushButton" name="editorButton">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>30</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Shift+Click to edit directory.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Metadata Editor</string>
+         </property>
+         <property name="icon">
+          <iconset resource="KCC.qrc">
+           <normaloff>:/Other/icons/editor.png</normaloff>:/Other/icons/editor.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="wikiButton">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>30</height>
+          </size>
+         </property>
+         <property name="text">
+          <string>Wiki</string>
+         </property>
+         <property name="icon">
+          <iconset resource="KCC.qrc">
+           <normaloff>:/Other/icons/wiki.png</normaloff>:/Other/icons/wiki.png</iconset>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item row="3" column="0" colspan="2">
+     <widget class="QWidget" name="buttonWidget" native="true">
+      <property name="sizePolicy">
+       <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+      <layout class="QGridLayout" name="gridLayout_4">
+       <property name="leftMargin">
+        <number>0</number>
+       </property>
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <property name="rightMargin">
+        <number>0</number>
+       </property>
+       <property name="bottomMargin">
+        <number>0</number>
+       </property>
+       <item row="0" column="0">
+        <widget class="QPushButton" name="directoryButton">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>30</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Add directory containing JPG, PNG or GIF files to queue.&lt;br/&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;CBR, CBZ and CB7 files inside will not be processed!&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Add image folder</string>
+         </property>
+         <property name="icon">
+          <iconset resource="KCC.qrc">
+           <normaloff>:/Other/icons/folder_new.png</normaloff>:/Other/icons/folder_new.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="3">
+        <widget class="QPushButton" name="fileButton">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>30</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Add CBR, CBZ, CB7 or PDF file to queue.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Add file(s)</string>
+         </property>
+         <property name="icon">
+          <iconset resource="KCC.qrc">
+           <normaloff>:/Other/icons/document_new.png</normaloff>:/Other/icons/document_new.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="0">
+        <widget class="QComboBox" name="deviceBox">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>28</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="3">
+        <widget class="QComboBox" name="formatBox">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>28</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Output format.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="2">
+        <widget class="QPushButton" name="convertButton">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>30</height>
+          </size>
+         </property>
+         <property name="font">
+          <font>
+           <bold>true</bold>
+          </font>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Shift+Click to select the output directory.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Convert</string>
+         </property>
+         <property name="icon">
+          <iconset resource="KCC.qrc">
+           <normaloff>:/Other/icons/convert.png</normaloff>:/Other/icons/convert.png</iconset>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="2">
+        <widget class="QPushButton" name="clearButton">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>30</height>
+          </size>
+         </property>
+         <property name="text">
+          <string>Clear list</string>
+         </property>
+         <property name="icon">
+          <iconset resource="KCC.qrc">
+           <normaloff>:/Other/icons/clear.png</normaloff>:/Other/icons/clear.png</iconset>
+         </property>
+        </widget>
+       </item>
+      </layout>
+      <zorder>directoryButton</zorder>
+      <zorder>clearButton</zorder>
+      <zorder>fileButton</zorder>
+      <zorder>deviceBox</zorder>
+      <zorder>convertButton</zorder>
+      <zorder>formatBox</zorder>
+     </widget>
+    </item>
+    <item row="1" column="0" colspan="2">
+     <widget class="QProgressBar" name="progressBar">
+      <property name="minimumSize">
+       <size>
+        <width>0</width>
+        <height>30</height>
+       </size>
+      </property>
+      <property name="font">
+       <font>
+        <bold>true</bold>
+       </font>
+      </property>
+      <property name="visible">
+       <bool>false</bool>
+      </property>
+      <property name="alignment">
+       <set>Qt::AlignmentFlag::AlignJustify|Qt::AlignmentFlag::AlignVCenter</set>
+      </property>
+     </widget>
+    </item>
+    <item row="8" column="0" colspan="2">
+     <widget class="QWidget" name="customWidget" native="true">
+      <property name="visible">
+       <bool>false</bool>
+      </property>
+      <layout class="QGridLayout" name="gridLayout_3">
+       <property name="leftMargin">
+        <number>0</number>
+       </property>
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <property name="rightMargin">
+        <number>0</number>
+       </property>
+       <property name="bottomMargin">
+        <number>0</number>
+       </property>
+       <item row="0" column="2">
+        <widget class="QLabel" name="hLabel">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Custom height:</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QSpinBox" name="widthBox">
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="maximum">
+          <number>2160</number>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="0">
+        <widget class="QLabel" name="wLabel">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Custom width:</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="3">
+        <widget class="QSpinBox" name="heightBox">
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="maximum">
+          <number>3840</number>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item row="9" column="0" colspan="2">
+     <widget class="QWidget" name="croppingWidget" native="true">
+      <property name="visible">
+       <bool>false</bool>
+      </property>
+      <layout class="QGridLayout" name="gridLayout_5">
+       <property name="leftMargin">
+        <number>0</number>
+       </property>
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <property name="rightMargin">
+        <number>0</number>
+       </property>
+       <property name="bottomMargin">
+        <number>0</number>
+       </property>
+       <item row="1" column="0">
+        <widget class="QLabel" name="preserveMarginLabel">
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;After calculating the cropping boundaries, &amp;quot;back up&amp;quot; a specified percentage amount.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Preserve Margin %</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="0">
+        <widget class="QLabel" name="croppingPowerLabel">
+         <property name="text">
+          <string>Cropping power:</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QSlider" name="croppingPowerSlider">
+         <property name="maximum">
+          <number>300</number>
+         </property>
+         <property name="singleStep">
+          <number>1</number>
+         </property>
+         <property name="orientation">
+          <enum>Qt::Orientation::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="1">
+        <widget class="QSpinBox" name="preserveMarginBox">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="maximum">
+          <number>99</number>
+         </property>
+         <property name="singleStep">
+          <number>5</number>
+         </property>
+         <property name="value">
+          <number>0</number>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
    <item row="5" column="0" colspan="2">
     <widget class="QWidget" name="optionWidget" native="true">
      <layout class="QGridLayout" name="gridLayout_2">
@@ -145,7 +518,7 @@
       <item row="5" column="2">
        <widget class="QCheckBox" name="disableProcessingBox">
         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;pre style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Do not process any image, ignore profile and processing options&lt;/pre&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Do not process any image, ignore profile and processing options.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
         </property>
         <property name="text">
          <string>Disable processing</string>
@@ -256,14 +629,24 @@
          <string>Reduce rainbow effect on color eink by slightly blurring images</string>
         </property>
         <property name="text">
-          <string>Reduce Rainbow</string>
+          <string>Rainbow blur</string>
+         </property>
+        </widget>
+       </item>
+       <item row="7" column="1">
+        <widget class="QCheckBox" name="chunkSizeCheckBox">
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-weight:700; text-decoration: underline;&quot;&gt;Unchecked&lt;br/&gt;&lt;/span&gt;Maximal output file size is 100 MB for Webtoon, 400 MB for others before split occurs.&lt;/p&gt;&lt;p&gt;&lt;span style=&quot; font-weight:700; text-decoration: underline;&quot;&gt;Checked&lt;/span&gt;&lt;br/&gt;Output file size specified in &amp;quot;Chunk size MB&amp;quot; before split occurs.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="text">
+          <string>Chunk size</string>
         </property>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
-    <item row="6" column="0" colspan="2">
+    <item row="7" column="0" colspan="2">
     <widget class="QWidget" name="gammaWidget" native="true">
      <property name="visible">
       <bool>false</bool>
@@ -304,188 +687,24 @@
      </layout>
     </widget>
    </item>
-    <item row="8" column="0" colspan="2">
-     <widget class="QWidget" name="croppingWidget" native="true">
-      <property name="visible">
-       <bool>false</bool>
-      </property>
-      <layout class="QHBoxLayout" name="horizontalLayout_3">
-       <property name="leftMargin">
-        <number>0</number>
-       </property>
-       <property name="topMargin">
-        <number>0</number>
-       </property>
-       <property name="rightMargin">
-        <number>0</number>
-       </property>
-       <property name="bottomMargin">
-        <number>0</number>
-       </property>
-       <item>
-        <widget class="QLabel" name="croppingPowerLabel">
-         <property name="text">
-          <string>Cropping power:</string>
-         </property>
-        </widget>
-       </item>
-       <item>
-        <widget class="QSlider" name="croppingPowerSlider">
-         <property name="maximum">
-          <number>300</number>
-         </property>
-         <property name="singleStep">
-          <number>1</number>
-         </property>
-         <property name="orientation">
-          <enum>Qt::Orientation::Horizontal</enum>
-         </property>
-        </widget>
-       </item>
-      </layout>
-     </widget>
-    </item>
-    <item row="3" column="0" colspan="2">
-     <widget class="QWidget" name="buttonWidget" native="true">
+    <item row="6" column="0">
+     <widget class="QWidget" name="chunkSizeWidget" native="true">
      <property name="sizePolicy">
-       <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
        <verstretch>0</verstretch>
       </sizepolicy>
      </property>
-      <layout class="QGridLayout" name="gridLayout_4">
-       <property name="leftMargin">
+      <property name="visible">
+       <bool>false</bool>
+      </property>
+      <property name="toolTip">
+       <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Warning: chunk size greater than default may cause&lt;br/&gt;performance/battery issues, especially on older devices.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+      </property>
+      <layout class="QHBoxLayout" name="horizontalLayout_4">
+       <property name="spacing">
        <number>0</number>
       </property>
-       <property name="topMargin">
-        <number>0</number>
-       </property>
-       <property name="rightMargin">
-        <number>0</number>
-       </property>
-       <property name="bottomMargin">
-        <number>0</number>
-       </property>
-       <item row="0" column="0">
-        <widget class="QPushButton" name="directoryButton">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>30</height>
-          </size>
-         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Add directory containing JPG, PNG or GIF files to queue.&lt;br/&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;CBR, CBZ and CB7 files inside will not be processed!&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-         <property name="text">
-          <string>Add directory</string>
-         </property>
-         <property name="icon">
-          <iconset resource="KCC.qrc">
-           <normaloff>:/Other/icons/folder_new.png</normaloff>:/Other/icons/folder_new.png</iconset>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="3">
-        <widget class="QPushButton" name="fileButton">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>30</height>
-          </size>
-         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Add CBR, CBZ, CB7 or PDF file to queue.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-         <property name="text">
-          <string>Add file</string>
-         </property>
-         <property name="icon">
-          <iconset resource="KCC.qrc">
-           <normaloff>:/Other/icons/document_new.png</normaloff>:/Other/icons/document_new.png</iconset>
-         </property>
-        </widget>
-       </item>
-       <item row="1" column="0">
-        <widget class="QComboBox" name="deviceBox">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>28</height>
-          </size>
-         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-        </widget>
-       </item>
-       <item row="1" column="3">
-        <widget class="QComboBox" name="formatBox">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>28</height>
-          </size>
-         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Output format.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-        </widget>
-       </item>
-       <item row="1" column="2">
-        <widget class="QPushButton" name="convertButton">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>30</height>
-          </size>
-         </property>
-         <property name="font">
-          <font>
-           <bold>true</bold>
-          </font>
-         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Shift+Click to select the output directory.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-         <property name="text">
-          <string>Convert</string>
-         </property>
-         <property name="icon">
-          <iconset resource="KCC.qrc">
-           <normaloff>:/Other/icons/convert.png</normaloff>:/Other/icons/convert.png</iconset>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="2">
-        <widget class="QPushButton" name="clearButton">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>30</height>
-          </size>
-         </property>
-         <property name="text">
-          <string>Clear list</string>
-         </property>
-         <property name="icon">
-          <iconset resource="KCC.qrc">
-           <normaloff>:/Other/icons/clear.png</normaloff>:/Other/icons/clear.png</iconset>
-         </property>
-        </widget>
-       </item>
-      </layout>
-      <zorder>directoryButton</zorder>
-      <zorder>clearButton</zorder>
-      <zorder>fileButton</zorder>
-      <zorder>deviceBox</zorder>
-      <zorder>convertButton</zorder>
-      <zorder>formatBox</zorder>
-     </widget>
-    </item>
-    <item row="0" column="0" colspan="2">
-     <widget class="QWidget" name="toolWidget" native="true">
-      <layout class="QHBoxLayout" name="horizontalLayout">
       <property name="leftMargin">
        <number>0</number>
       </property>
@@ -499,149 +718,41 @@
        <number>0</number>
       </property>
       <item>
-        <widget class="QPushButton" name="editorButton">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>30</height>
-          </size>
-         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Shift+Click to edit directory.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+        <widget class="QLabel" name="chunkSizeLabel">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
         </property>
         <property name="text">
-          <string>Metadata Editor</string>
-         </property>
-         <property name="icon">
-          <iconset resource="KCC.qrc">
-           <normaloff>:/Other/icons/editor.png</normaloff>:/Other/icons/editor.png</iconset>
+          <string>Chunk size MB:</string>
         </property>
        </widget>
       </item>
       <item>
-        <widget class="QPushButton" name="wikiButton">
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>30</height>
-          </size>
+        <widget class="QSpinBox" name="chunkSizeBox">
+         <property name="minimum">
+          <number>100</number>
         </property>
-         <property name="text">
-          <string>Wiki</string>
+         <property name="maximum">
+          <number>600</number>
         </property>
-         <property name="icon">
-          <iconset resource="KCC.qrc">
-           <normaloff>:/Other/icons/wiki.png</normaloff>:/Other/icons/wiki.png</iconset>
+         <property name="value">
+          <number>400</number>
         </property>
        </widget>
       </item>
-      </layout>
-     </widget>
-    </item>
-    <item row="2" column="0" colspan="2">
-     <widget class="QListWidget" name="jobList">
-      <property name="styleSheet">
-       <string notr="true"/>
-      </property>
-      <property name="selectionMode">
-       <enum>QAbstractItemView::SelectionMode::NoSelection</enum>
-      </property>
-      <property name="verticalScrollMode">
-       <enum>QAbstractItemView::ScrollMode::ScrollPerPixel</enum>
-      </property>
-      <property name="horizontalScrollMode">
-       <enum>QAbstractItemView::ScrollMode::ScrollPerPixel</enum>
-      </property>
-     </widget>
-    </item>
-    <item row="1" column="0" colspan="2">
-     <widget class="QProgressBar" name="progressBar">
-      <property name="minimumSize">
-       <size>
-        <width>0</width>
-        <height>30</height>
-       </size>
-      </property>
-      <property name="font">
-       <font>
-        <bold>true</bold>
-       </font>
-      </property>
-      <property name="visible">
-       <bool>false</bool>
-      </property>
-      <property name="alignment">
-       <set>Qt::AlignmentFlag::AlignJustify|Qt::AlignmentFlag::AlignVCenter</set>
-      </property>
-     </widget>
-    </item>
-    <item row="7" column="0" colspan="2">
-     <widget class="QWidget" name="customWidget" native="true">
-      <property name="visible">
-       <bool>false</bool>
-      </property>
-      <layout class="QGridLayout" name="gridLayout_3">
-       <property name="leftMargin">
-        <number>0</number>
-       </property>
-       <property name="topMargin">
-        <number>0</number>
-       </property>
-       <property name="rightMargin">
-        <number>0</number>
-       </property>
-       <property name="bottomMargin">
-        <number>0</number>
-       </property>
-       <item row="0" column="2">
-        <widget class="QLabel" name="hLabel">
+       <item>
+        <widget class="QLabel" name="chunkSizeWarnLabel">
         <property name="sizePolicy">
-          <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+          <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
         <property name="text">
-          <string>Custom height:</string>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="1">
-        <widget class="QSpinBox" name="widthBox">
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-         <property name="maximum">
-          <number>2160</number>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="0">
-        <widget class="QLabel" name="wLabel">
-         <property name="sizePolicy">
-          <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
-           <horstretch>0</horstretch>
-           <verstretch>0</verstretch>
-          </sizepolicy>
-         </property>
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-         <property name="text">
-          <string>Custom width:</string>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="3">
-        <widget class="QSpinBox" name="heightBox">
-         <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p style='white-space:pre'&gt;Resolution of the target device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-         <property name="maximum">
-          <number>3840</number>
+          <string>Greater than default may cause performance issues on older ereaders.</string>
         </property>
        </widget>
       </item>
@@ -672,18 +783,23 @@
  <tabstop>borderBox</tabstop>
  <tabstop>outputSplit</tabstop>
  <tabstop>colorBox</tabstop>
-  <tabstop>croppingBox</tabstop>
  <tabstop>mozJpegBox</tabstop>
  <tabstop>maximizeStrips</tabstop>
+  <tabstop>croppingBox</tabstop>
+  <tabstop>spreadShiftBox</tabstop>
  <tabstop>deleteBox</tabstop>
  <tabstop>disableProcessingBox</tabstop>
+  <tabstop>chunkSizeBox</tabstop>
+  <tabstop>noRotateBox</tabstop>
+  <tabstop>interPanelCropBox</tabstop>
+  <tabstop>reduceRainbowBox</tabstop>
+  <tabstop>heightBox</tabstop>
+  <tabstop>croppingPowerSlider</tabstop>
  <tabstop>editorButton</tabstop>
  <tabstop>wikiButton</tabstop>
  <tabstop>jobList</tabstop>
  <tabstop>gammaSlider</tabstop>
  <tabstop>widthBox</tabstop>
-  <tabstop>heightBox</tabstop>
-  <tabstop>croppingPowerSlider</tabstop>
 </tabstops>
 <resources>
  <include location="KCC.qrc"/>
--- a/kcc.spec
+++ b/kcc.spec
@@ -0,0 +1,39 @@
+# -*- mode: python ; coding: utf-8 -*-
+
+
+block_cipher = None
+
+
+a = Analysis(['kcc.py'],
+             pathex=['.'],
+             binaries=[],
+             datas=[],
+             hiddenimports=['_cffi_backend'],
+             hookspath=[],
+             runtime_hooks=[],
+             excludes=[],
+             win_no_prefer_redirects=False,
+             win_private_assemblies=False,
+             cipher=block_cipher,
+             noarchive=False)
+pyz = PYZ(a.pure, a.zipped_data,
+             cipher=block_cipher)
+
+exe = EXE(pyz,
+          a.scripts,
+          a.binaries,
+          a.zipfiles,
+          a.datas,  
+          [],
+          name='kcc',
+          debug=False,
+          bootloader_ignore_signals=False,
+          strip=False,
+          upx=False,
+          upx_exclude=[],
+          runtime_tmpdir=None,
+          console=False,
+          disable_windowed_traceback=False,
+          target_arch=None,
+          codesign_identity=None,
+          entitlements_file=None , icon='icons\\comic2ebook.ico')
--- a/kindlecomicconverter/KCC_gui.py
+++ b/kindlecomicconverter/KCC_gui.py
@@ -37,9 +37,10 @@ from packaging.version import Version
 from raven import Client
 from tempfile import gettempdir

-from .shared import HTMLStripper, sanitizeTrace, walkLevel, subprocess_run
+from .shared import HTMLStripper, available_archive_tools, sanitizeTrace, walkLevel, subprocess_run
 from . import __version__
 from . import comic2ebook
+from . import image
 from . import metadata
 from . import kindle
 from . import KCC_ui
@@ -119,6 +120,8 @@ class Icons:
        self.CBZFormat.addPixmap(QPixmap(":/Formats/icons/CBZ.png"), QIcon.Mode.Normal, QIcon.State.Off)
        self.EPUBFormat = QIcon()
        self.EPUBFormat.addPixmap(QPixmap(":/Formats/icons/EPUB.png"), QIcon.Mode.Normal, QIcon.State.Off)
+        self.KFXFormat = QIcon()
+        self.KFXFormat.addPixmap(QPixmap(":/Formats/icons/KFX.png"), QIcon.Normal, QIcon.Off)

        self.info = QIcon()
        self.info.addPixmap(QPixmap(":/Status/icons/info.png"), QIcon.Mode.Normal, QIcon.State.Off)
@@ -244,6 +247,7 @@ class WorkerThread(QThread):
        options.cropping = GUI.croppingBox.checkState().value
        if GUI.croppingBox.checkState() != Qt.CheckState.Unchecked:
            options.croppingp = float(GUI.croppingPowerValue)
+            options.preservemargin = GUI.preserveMarginBox.value()
        options.interpanelcrop = GUI.interPanelCropBox.checkState().value
        if GUI.borderBox.checkState() == Qt.CheckState.PartiallyChecked:
            options.white_borders = True
@@ -276,6 +280,8 @@ class WorkerThread(QThread):
            options.output = GUI.targetDirectory
        if GUI.authorEdit.text():
            options.author = str(GUI.authorEdit.text())
+        if GUI.chunkSizeCheckBox.isChecked():
+            options.targetsize = int(GUI.chunkSizeBox.value())

        for i in range(GUI.jobList.count()):
            # Make sure that we don't consider any system message as job to do
@@ -317,13 +323,8 @@ class WorkerThread(QThread):
                GUI.progress.content = ''
                self.errors = True
                _, _, traceback = sys.exc_info()
-                if len(err.args) == 1:
-                    MW.showDialog.emit("Error during conversion %s:\n\n%s\n\nTraceback:\n%s"
-                                       % (jobargv[-1], str(err), sanitizeTrace(traceback)), 'error')
-                else:
-                    MW.showDialog.emit("Error during conversion %s:\n\n%s\n\nTraceback:\n%s"
-                                       % (jobargv[-1], str(err.args[0]), err.args[1]), 'error')
-                    GUI.sentry.extra_context({'realTraceback': err.args[1]})
+                MW.showDialog.emit("Error during conversion %s:\n\n%s\n\nTraceback:\n%s"
+                                   % (jobargv[-1], str(err), sanitizeTrace(traceback)), 'error')
                if ' is corrupted.' not in str(err):
                    GUI.sentry.captureException()
                MW.addMessage.emit('Error during conversion! Please consult '
@@ -608,6 +609,8 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
            GUI.rotateBox.setChecked(False)
            GUI.upscaleBox.setEnabled(False)
            GUI.upscaleBox.setChecked(True)
+            GUI.chunkSizeCheckBox.setEnabled(False)
+            GUI.chunkSizeCheckBox.setChecked(False)
        else:
            profile = GUI.profiles[str(GUI.deviceBox.currentText())]
            if profile['PVOptions']:
@@ -615,11 +618,12 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
            GUI.mangaBox.setEnabled(True)
            GUI.rotateBox.setEnabled(True)
            GUI.upscaleBox.setEnabled(True)
+            GUI.chunkSizeCheckBox.setEnabled(True)

    def togglequalityBox(self, value):
        profile = GUI.profiles[str(GUI.deviceBox.currentText())]
        if value == 2:
-            if profile['Label'] in ['KV', 'KO']:
+            if profile['Label'] == 'KV' or profile['Label'] in image.ProfileData.ProfilesKindlePDOC.keys():
                self.addMessage('This option is intended for older Kindle models.', 'warning')
                self.addMessage('On this device, quality improvement will be negligible.', 'warning')
            GUI.upscaleBox.setEnabled(False)
@@ -627,6 +631,9 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
        else:
            GUI.upscaleBox.setEnabled(True)
            GUI.upscaleBox.setChecked(profile['DefaultUpscale'])
+    
+    def togglechunkSizeCheckBox(self, value):
+        GUI.chunkSizeWidget.setVisible(value)

    def changeGamma(self, value):
        valueRaw = int(5 * round(float(value) / 5))
@@ -660,7 +667,10 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
        if not GUI.webtoonBox.isChecked():
            GUI.qualityBox.setEnabled(profile['PVOptions'])
        GUI.upscaleBox.setChecked(profile['DefaultUpscale'])
-        GUI.mangaBox.setChecked(True)
+        if profile['Label'] == 'KS':
+            GUI.upscaleBox.setDisabled(True)
+        else:
+            GUI.upscaleBox.setEnabled(True)
        if not profile['PVOptions']:
            GUI.qualityBox.setChecked(False)
        if str(GUI.deviceBox.currentText()) == 'Other':
@@ -680,6 +690,12 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
        else:
            GUI.outputSplit.setEnabled(False)
            GUI.outputSplit.setChecked(False)
+        if (GUI.formats[str(GUI.formatBox.currentText())]['format'] == 'EPUB-200MB' or
+            GUI.formats[str(GUI.formatBox.currentText())]['format'] == 'MOBI+EPUB-200MB'):
+            GUI.chunkSizeCheckBox.setEnabled(False)
+            GUI.chunkSizeCheckBox.setChecked(False)
+        elif not GUI.webtoonBox.isChecked():
+            GUI.chunkSizeCheckBox.setEnabled(True)

    def stripTags(self, html):
        s = HTMLStripper()
@@ -792,6 +808,7 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
                                           'gammaBox': GUI.gammaBox.checkState().value,
                                           'croppingBox': GUI.croppingBox.checkState().value,
                                           'croppingPowerSlider': float(self.croppingPowerValue) * 100,
+                                           'preserveMarginBox': self.preserveMarginBox.value(),
                                           'interPanelCropBox': GUI.interPanelCropBox.checkState().value,
                                           'upscaleBox': GUI.upscaleBox.checkState().value,
                                           'borderBox': GUI.borderBox.checkState().value,
@@ -807,7 +824,9 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
                                           'spreadShiftBox': GUI.spreadShiftBox.checkState().value,
                                           'noRotateBox': GUI.noRotateBox.checkState().value,
                                           'maximizeStrips': GUI.maximizeStrips.checkState().value,
-                                           'gammaSlider': float(self.gammaValue) * 100})
+                                           'gammaSlider': float(self.gammaValue) * 100,
+                                           'chunkSizeCheckBox': GUI.chunkSizeCheckBox.checkState().value,
+                                           'chunkSizeBox': GUI.chunkSizeBox.value()})
        self.settings.sync()
        self.tray.hide()

@@ -925,35 +944,36 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
            "MOBI/AZW3": {'icon': 'MOBI', 'format': 'MOBI'},
            "EPUB": {'icon': 'EPUB', 'format': 'EPUB'},
            "CBZ": {'icon': 'CBZ', 'format': 'CBZ'},
-            "EPUB (Calibre KFX)": {'icon': 'EPUB', 'format': 'KFX'},
+            "KFX (does not work)": {'icon': 'KFX', 'format': 'KFX'},
            "MOBI + EPUB": {'icon': 'MOBI', 'format': 'MOBI+EPUB'},
-            "EPUB (200MB limit)": {'icon': 'EPUB', 'format': 'EPUB-200MB'}
+            "EPUB (200MB limit)": {'icon': 'EPUB', 'format': 'EPUB-200MB'},
+            "MOBI + EPUB (200MB limit)": {'icon': 'MOBI', 'format': 'MOBI+EPUB-200MB'},
        }


        self.profiles = {
-            "Kindle Oasis 9/10": {'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0,
+            "Kindle Oasis 9/10": {'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0,
                                 'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KO'},
-            "Kindle Oasis 8": {'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0,
+            "Kindle Oasis 8": {'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0,
                             'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KV'},
-            "Kindle Voyage": {'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0,
+            "Kindle Voyage": {'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0,
                              'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KV'},
            "Kindle Scribe": {
-                'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': False, 'ForceColor': False, 'Label': 'KS',
+                'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': False, 'ForceColor': False, 'Label': 'KS',
            },
            "Kindle 11": {
-                'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': False, 'Label': 'K11',
+                'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': False, 'Label': 'K11',
            },
            "Kindle PW 11": {
-                'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KPW5',
+                'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KPW5',
            },
            "Kindle PW 12": {
-                'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KO',
+                'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KO',
            },
            "Kindle CS 12": {
-                'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': True, 'Label': 'KO',
+                'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0, 'DefaultUpscale': True, 'ForceColor': True, 'Label': 'KO',
            },
-            "Kindle PW 7/10": {'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0,
+            "Kindle PW 7/10": {'PVOptions': False, 'ForceExpert': False, 'DefaultFormat': 0,
                              'DefaultUpscale': True, 'ForceColor': False, 'Label': 'KV'},
            "Kindle PW 5/6": {'PVOptions': True, 'ForceExpert': False, 'DefaultFormat': 0,
                              'DefaultUpscale': False, 'ForceColor': False, 'Label': 'KPW'},
@@ -1071,19 +1091,12 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
            self.addMessage('Since you are a new user of <b>KCC</b> please see few '
                            '<a href="https://github.com/ciromattia/kcc/wiki/Important-tips">important tips</a>.',
                            'info')
-        try:
-            subprocess_run(['tar'], stdout=PIPE, stderr=STDOUT)
-            self.tar = True
-        except FileNotFoundError:
-            self.tar = False
-        try:
-            subprocess_run(['7z'], stdout=PIPE, stderr=STDOUT)
-            self.sevenzip = True
-        except FileNotFoundError:
-            self.sevenzip = False
-            if not self.tar:
-                self.addMessage('<a href="https://github.com/ciromattia/kcc#7-zip">Install 7z (link)</a>'
-                                ' to enable CBZ/CBR/ZIP/etc processing.', 'warning')
+        
+        self.tar = 'tar' in available_archive_tools()
+        self.sevenzip = '7z' in available_archive_tools()
+        if not any([self.tar, self.sevenzip]):
+            self.addMessage('<a href="https://github.com/ciromattia/kcc#7-zip">Install 7z (link)</a>'
+                            ' to enable CBZ/CBR/ZIP/etc processing.', 'warning')
        self.detectKindleGen(True)

        APP.messageFromOtherInstance.connect(self.handleMessage)
@@ -1099,6 +1112,7 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
        GUI.croppingPowerSlider.valueChanged.connect(self.changeCroppingPower)
        GUI.webtoonBox.stateChanged.connect(self.togglewebtoonBox)
        GUI.qualityBox.stateChanged.connect(self.togglequalityBox)
+        GUI.chunkSizeCheckBox.stateChanged.connect(self.togglechunkSizeCheckBox)
        GUI.deviceBox.activated.connect(self.changeDevice)
        GUI.formatBox.activated.connect(self.changeFormat)
        MW.progressBarTick.connect(self.updateProgressbar)
@@ -1151,6 +1165,9 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
                if GUI.croppingPowerSlider.isEnabled():
                    GUI.croppingPowerSlider.setValue(int(self.options[option]))
                    self.changeCroppingPower(int(self.options[option]))
+                    GUI.preserveMarginBox.setValue(self.options.get('preserveMarginBox', 0))
+            elif str(option) == "chunkSizeBox":
+                GUI.chunkSizeBox.setValue(int(self.options[option]))
            else:
                try:
                    if getattr(GUI, option).isEnabled():
--- a/kindlecomicconverter/KCC_rc.py
+++ b/kindlecomicconverter/KCC_rc.py
@@ -1,6 +1,6 @@
 # Resource object code (Python 3)
 # Created by: object code
-# Created by: The Resource Compiler for Qt version 6.8.1
+# Created by: The Resource Compiler for Qt version 6.8.2
 # WARNING! All changes made in this file will be lost!

 from PySide6 import QtCore
@@ -11624,7 +11624,7 @@ qt_resource_struct = b"\
 \x00\x00\x00\xa6\x00\x00\x00\x00\x00\x01\x00\x01(\x97\
 \x00\x00\x01\x88;p\xbcB\
 \x00\x00\x00\xbc\x00\x00\x00\x00\x00\x01\x00\x011\xef\
-\x00\x00\x01\x94\x1a\xa2\xa2\x92\
+\x00\x00\x01\x96\x16b\x1f\x99\
 \x00\x00\x00\x8c\x00\x00\x00\x00\x00\x01\x00\x01\x1d\x90\
 \x00\x00\x01\x88;p\xbcB\
 \x00\x00\x00\xd0\x00\x00\x00\x00\x00\x01\x00\x01:\x05\
--- a/kindlecomicconverter/KCC_ui.py
+++ b/kindlecomicconverter/KCC_ui.py
@@ -3,7 +3,7 @@
 ################################################################################
 ## Form generated from reading UI file 'KCC.ui'
 ##
-## Created by: Qt User Interface Compiler version 6.8.1
+## Created by: Qt User Interface Compiler version 6.8.2
 ##
 ## WARNING! All changes made in this file will be lost when recompiling UI file!
 ################################################################################
@@ -26,7 +26,7 @@ class Ui_mainWindow(object):
    def setupUi(self, mainWindow):
        if not mainWindow.objectName():
            mainWindow.setObjectName(u"mainWindow")
-        mainWindow.resize(482, 448)
+        mainWindow.resize(519, 572)
        icon = QIcon()
        icon.addFile(u":/Icon/icons/comic2ebook.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
        mainWindow.setWindowIcon(icon)
@@ -35,6 +35,198 @@ class Ui_mainWindow(object):
        self.gridLayout = QGridLayout(self.centralWidget)
        self.gridLayout.setObjectName(u"gridLayout")
        self.gridLayout.setContentsMargins(-1, -1, -1, 5)
+        self.jobList = QListWidget(self.centralWidget)
+        self.jobList.setObjectName(u"jobList")
+        self.jobList.setStyleSheet(u"")
+        self.jobList.setSelectionMode(QAbstractItemView.SelectionMode.NoSelection)
+        self.jobList.setVerticalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
+        self.jobList.setHorizontalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
+
+        self.gridLayout.addWidget(self.jobList, 2, 0, 1, 2)
+
+        self.toolWidget = QWidget(self.centralWidget)
+        self.toolWidget.setObjectName(u"toolWidget")
+        self.horizontalLayout = QHBoxLayout(self.toolWidget)
+        self.horizontalLayout.setObjectName(u"horizontalLayout")
+        self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
+        self.editorButton = QPushButton(self.toolWidget)
+        self.editorButton.setObjectName(u"editorButton")
+        self.editorButton.setMinimumSize(QSize(0, 30))
+        icon1 = QIcon()
+        icon1.addFile(u":/Other/icons/editor.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
+        self.editorButton.setIcon(icon1)
+
+        self.horizontalLayout.addWidget(self.editorButton)
+
+        self.wikiButton = QPushButton(self.toolWidget)
+        self.wikiButton.setObjectName(u"wikiButton")
+        self.wikiButton.setMinimumSize(QSize(0, 30))
+        icon2 = QIcon()
+        icon2.addFile(u":/Other/icons/wiki.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
+        self.wikiButton.setIcon(icon2)
+
+        self.horizontalLayout.addWidget(self.wikiButton)
+
+
+        self.gridLayout.addWidget(self.toolWidget, 0, 0, 1, 2)
+
+        self.buttonWidget = QWidget(self.centralWidget)
+        self.buttonWidget.setObjectName(u"buttonWidget")
+        sizePolicy = QSizePolicy(QSizePolicy.Policy.Preferred, QSizePolicy.Policy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.buttonWidget.sizePolicy().hasHeightForWidth())
+        self.buttonWidget.setSizePolicy(sizePolicy)
+        self.gridLayout_4 = QGridLayout(self.buttonWidget)
+        self.gridLayout_4.setObjectName(u"gridLayout_4")
+        self.gridLayout_4.setContentsMargins(0, 0, 0, 0)
+        self.directoryButton = QPushButton(self.buttonWidget)
+        self.directoryButton.setObjectName(u"directoryButton")
+        self.directoryButton.setMinimumSize(QSize(0, 30))
+        icon3 = QIcon()
+        icon3.addFile(u":/Other/icons/folder_new.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
+        self.directoryButton.setIcon(icon3)
+
+        self.gridLayout_4.addWidget(self.directoryButton, 0, 0, 1, 1)
+
+        self.fileButton = QPushButton(self.buttonWidget)
+        self.fileButton.setObjectName(u"fileButton")
+        self.fileButton.setMinimumSize(QSize(0, 30))
+        icon4 = QIcon()
+        icon4.addFile(u":/Other/icons/document_new.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
+        self.fileButton.setIcon(icon4)
+
+        self.gridLayout_4.addWidget(self.fileButton, 0, 3, 1, 1)
+
+        self.deviceBox = QComboBox(self.buttonWidget)
+        self.deviceBox.setObjectName(u"deviceBox")
+        self.deviceBox.setMinimumSize(QSize(0, 28))
+
+        self.gridLayout_4.addWidget(self.deviceBox, 1, 0, 1, 1)
+
+        self.formatBox = QComboBox(self.buttonWidget)
+        self.formatBox.setObjectName(u"formatBox")
+        self.formatBox.setMinimumSize(QSize(0, 28))
+
+        self.gridLayout_4.addWidget(self.formatBox, 1, 3, 1, 1)
+
+        self.convertButton = QPushButton(self.buttonWidget)
+        self.convertButton.setObjectName(u"convertButton")
+        self.convertButton.setMinimumSize(QSize(0, 30))
+        font = QFont()
+        font.setBold(True)
+        self.convertButton.setFont(font)
+        icon5 = QIcon()
+        icon5.addFile(u":/Other/icons/convert.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
+        self.convertButton.setIcon(icon5)
+
+        self.gridLayout_4.addWidget(self.convertButton, 1, 2, 1, 1)
+
+        self.clearButton = QPushButton(self.buttonWidget)
+        self.clearButton.setObjectName(u"clearButton")
+        self.clearButton.setMinimumSize(QSize(0, 30))
+        icon6 = QIcon()
+        icon6.addFile(u":/Other/icons/clear.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
+        self.clearButton.setIcon(icon6)
+
+        self.gridLayout_4.addWidget(self.clearButton, 0, 2, 1, 1)
+
+        self.directoryButton.raise_()
+        self.clearButton.raise_()
+        self.fileButton.raise_()
+        self.deviceBox.raise_()
+        self.convertButton.raise_()
+        self.formatBox.raise_()
+
+        self.gridLayout.addWidget(self.buttonWidget, 3, 0, 1, 2)
+
+        self.progressBar = QProgressBar(self.centralWidget)
+        self.progressBar.setObjectName(u"progressBar")
+        self.progressBar.setMinimumSize(QSize(0, 30))
+        self.progressBar.setFont(font)
+        self.progressBar.setVisible(False)
+        self.progressBar.setAlignment(Qt.AlignmentFlag.AlignJustify|Qt.AlignmentFlag.AlignVCenter)
+
+        self.gridLayout.addWidget(self.progressBar, 1, 0, 1, 2)
+
+        self.customWidget = QWidget(self.centralWidget)
+        self.customWidget.setObjectName(u"customWidget")
+        self.customWidget.setVisible(False)
+        self.gridLayout_3 = QGridLayout(self.customWidget)
+        self.gridLayout_3.setObjectName(u"gridLayout_3")
+        self.gridLayout_3.setContentsMargins(0, 0, 0, 0)
+        self.hLabel = QLabel(self.customWidget)
+        self.hLabel.setObjectName(u"hLabel")
+        sizePolicy1 = QSizePolicy(QSizePolicy.Policy.Fixed, QSizePolicy.Policy.Preferred)
+        sizePolicy1.setHorizontalStretch(0)
+        sizePolicy1.setVerticalStretch(0)
+        sizePolicy1.setHeightForWidth(self.hLabel.sizePolicy().hasHeightForWidth())
+        self.hLabel.setSizePolicy(sizePolicy1)
+
+        self.gridLayout_3.addWidget(self.hLabel, 0, 2, 1, 1)
+
+        self.widthBox = QSpinBox(self.customWidget)
+        self.widthBox.setObjectName(u"widthBox")
+        self.widthBox.setMaximum(2160)
+
+        self.gridLayout_3.addWidget(self.widthBox, 0, 1, 1, 1)
+
+        self.wLabel = QLabel(self.customWidget)
+        self.wLabel.setObjectName(u"wLabel")
+        sizePolicy1.setHeightForWidth(self.wLabel.sizePolicy().hasHeightForWidth())
+        self.wLabel.setSizePolicy(sizePolicy1)
+
+        self.gridLayout_3.addWidget(self.wLabel, 0, 0, 1, 1)
+
+        self.heightBox = QSpinBox(self.customWidget)
+        self.heightBox.setObjectName(u"heightBox")
+        self.heightBox.setMaximum(3840)
+
+        self.gridLayout_3.addWidget(self.heightBox, 0, 3, 1, 1)
+
+
+        self.gridLayout.addWidget(self.customWidget, 8, 0, 1, 2)
+
+        self.croppingWidget = QWidget(self.centralWidget)
+        self.croppingWidget.setObjectName(u"croppingWidget")
+        self.croppingWidget.setVisible(False)
+        self.gridLayout_5 = QGridLayout(self.croppingWidget)
+        self.gridLayout_5.setObjectName(u"gridLayout_5")
+        self.gridLayout_5.setContentsMargins(0, 0, 0, 0)
+        self.preserveMarginLabel = QLabel(self.croppingWidget)
+        self.preserveMarginLabel.setObjectName(u"preserveMarginLabel")
+
+        self.gridLayout_5.addWidget(self.preserveMarginLabel, 1, 0, 1, 1)
+
+        self.croppingPowerLabel = QLabel(self.croppingWidget)
+        self.croppingPowerLabel.setObjectName(u"croppingPowerLabel")
+
+        self.gridLayout_5.addWidget(self.croppingPowerLabel, 0, 0, 1, 1)
+
+        self.croppingPowerSlider = QSlider(self.croppingWidget)
+        self.croppingPowerSlider.setObjectName(u"croppingPowerSlider")
+        self.croppingPowerSlider.setMaximum(300)
+        self.croppingPowerSlider.setSingleStep(1)
+        self.croppingPowerSlider.setOrientation(Qt.Orientation.Horizontal)
+
+        self.gridLayout_5.addWidget(self.croppingPowerSlider, 0, 1, 1, 1)
+
+        self.preserveMarginBox = QSpinBox(self.croppingWidget)
+        self.preserveMarginBox.setObjectName(u"preserveMarginBox")
+        sizePolicy2 = QSizePolicy(QSizePolicy.Policy.Fixed, QSizePolicy.Policy.Fixed)
+        sizePolicy2.setHorizontalStretch(0)
+        sizePolicy2.setVerticalStretch(0)
+        sizePolicy2.setHeightForWidth(self.preserveMarginBox.sizePolicy().hasHeightForWidth())
+        self.preserveMarginBox.setSizePolicy(sizePolicy2)
+        self.preserveMarginBox.setMaximum(99)
+        self.preserveMarginBox.setSingleStep(5)
+        self.preserveMarginBox.setValue(0)
+
+        self.gridLayout_5.addWidget(self.preserveMarginBox, 1, 1, 1, 1)
+
+
+        self.gridLayout.addWidget(self.croppingWidget, 9, 0, 1, 2)
+
        self.optionWidget = QWidget(self.centralWidget)
        self.optionWidget.setObjectName(u"optionWidget")
        self.gridLayout_2 = QGridLayout(self.optionWidget)
@@ -102,11 +294,11 @@ class Ui_mainWindow(object):

        self.authorEdit = QLineEdit(self.optionWidget)
        self.authorEdit.setObjectName(u"authorEdit")
-        sizePolicy = QSizePolicy(QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.authorEdit.sizePolicy().hasHeightForWidth())
-        self.authorEdit.setSizePolicy(sizePolicy)
+        sizePolicy3 = QSizePolicy(QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Fixed)
+        sizePolicy3.setHorizontalStretch(0)
+        sizePolicy3.setVerticalStretch(0)
+        sizePolicy3.setHeightForWidth(self.authorEdit.sizePolicy().hasHeightForWidth())
+        self.authorEdit.setSizePolicy(sizePolicy3)
        self.authorEdit.setFocusPolicy(Qt.FocusPolicy.ClickFocus)
        self.authorEdit.setClearButtonEnabled(False)

@@ -149,6 +341,11 @@ class Ui_mainWindow(object):

        self.gridLayout_2.addWidget(self.reduceRainbowBox, 7, 2, 1, 1)

+        self.chunkSizeCheckBox = QCheckBox(self.optionWidget)
+        self.chunkSizeCheckBox.setObjectName(u"chunkSizeCheckBox")
+
+        self.gridLayout_2.addWidget(self.chunkSizeCheckBox, 7, 1, 1, 1)
+

        self.gridLayout.addWidget(self.optionWidget, 5, 0, 1, 2)

@@ -172,181 +369,44 @@ class Ui_mainWindow(object):
        self.horizontalLayout_2.addWidget(self.gammaSlider)


-        self.gridLayout.addWidget(self.gammaWidget, 6, 0, 1, 2)
+        self.gridLayout.addWidget(self.gammaWidget, 7, 0, 1, 2)

-        self.croppingWidget = QWidget(self.centralWidget)
-        self.croppingWidget.setObjectName(u"croppingWidget")
-        self.croppingWidget.setVisible(False)
-        self.horizontalLayout_3 = QHBoxLayout(self.croppingWidget)
-        self.horizontalLayout_3.setObjectName(u"horizontalLayout_3")
-        self.horizontalLayout_3.setContentsMargins(0, 0, 0, 0)
-        self.croppingPowerLabel = QLabel(self.croppingWidget)
-        self.croppingPowerLabel.setObjectName(u"croppingPowerLabel")
+        self.chunkSizeWidget = QWidget(self.centralWidget)
+        self.chunkSizeWidget.setObjectName(u"chunkSizeWidget")
+        sizePolicy3.setHeightForWidth(self.chunkSizeWidget.sizePolicy().hasHeightForWidth())
+        self.chunkSizeWidget.setSizePolicy(sizePolicy3)
+        self.chunkSizeWidget.setVisible(False)
+        self.horizontalLayout_4 = QHBoxLayout(self.chunkSizeWidget)
+        self.horizontalLayout_4.setSpacing(0)
+        self.horizontalLayout_4.setObjectName(u"horizontalLayout_4")
+        self.horizontalLayout_4.setContentsMargins(0, 0, 0, 0)
+        self.chunkSizeLabel = QLabel(self.chunkSizeWidget)
+        self.chunkSizeLabel.setObjectName(u"chunkSizeLabel")
+        sizePolicy4 = QSizePolicy(QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Preferred)
+        sizePolicy4.setHorizontalStretch(0)
+        sizePolicy4.setVerticalStretch(0)
+        sizePolicy4.setHeightForWidth(self.chunkSizeLabel.sizePolicy().hasHeightForWidth())
+        self.chunkSizeLabel.setSizePolicy(sizePolicy4)

-        self.horizontalLayout_3.addWidget(self.croppingPowerLabel)
+        self.horizontalLayout_4.addWidget(self.chunkSizeLabel)

-        self.croppingPowerSlider = QSlider(self.croppingWidget)
-        self.croppingPowerSlider.setObjectName(u"croppingPowerSlider")
-        self.croppingPowerSlider.setMaximum(300)
-        self.croppingPowerSlider.setSingleStep(1)
-        self.croppingPowerSlider.setOrientation(Qt.Orientation.Horizontal)
+        self.chunkSizeBox = QSpinBox(self.chunkSizeWidget)
+        self.chunkSizeBox.setObjectName(u"chunkSizeBox")
+        self.chunkSizeBox.setMinimum(100)
+        self.chunkSizeBox.setMaximum(600)
+        self.chunkSizeBox.setValue(400)

-        self.horizontalLayout_3.addWidget(self.croppingPowerSlider)
+        self.horizontalLayout_4.addWidget(self.chunkSizeBox)
+
+        self.chunkSizeWarnLabel = QLabel(self.chunkSizeWidget)
+        self.chunkSizeWarnLabel.setObjectName(u"chunkSizeWarnLabel")
+        sizePolicy4.setHeightForWidth(self.chunkSizeWarnLabel.sizePolicy().hasHeightForWidth())
+        self.chunkSizeWarnLabel.setSizePolicy(sizePolicy4)
+
+        self.horizontalLayout_4.addWidget(self.chunkSizeWarnLabel)


-        self.gridLayout.addWidget(self.croppingWidget, 8, 0, 1, 2)
-
-        self.buttonWidget = QWidget(self.centralWidget)
-        self.buttonWidget.setObjectName(u"buttonWidget")
-        sizePolicy1 = QSizePolicy(QSizePolicy.Policy.Preferred, QSizePolicy.Policy.Fixed)
-        sizePolicy1.setHorizontalStretch(0)
-        sizePolicy1.setVerticalStretch(0)
-        sizePolicy1.setHeightForWidth(self.buttonWidget.sizePolicy().hasHeightForWidth())
-        self.buttonWidget.setSizePolicy(sizePolicy1)
-        self.gridLayout_4 = QGridLayout(self.buttonWidget)
-        self.gridLayout_4.setObjectName(u"gridLayout_4")
-        self.gridLayout_4.setContentsMargins(0, 0, 0, 0)
-        self.directoryButton = QPushButton(self.buttonWidget)
-        self.directoryButton.setObjectName(u"directoryButton")
-        self.directoryButton.setMinimumSize(QSize(0, 30))
-        icon1 = QIcon()
-        icon1.addFile(u":/Other/icons/folder_new.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
-        self.directoryButton.setIcon(icon1)
-
-        self.gridLayout_4.addWidget(self.directoryButton, 0, 0, 1, 1)
-
-        self.fileButton = QPushButton(self.buttonWidget)
-        self.fileButton.setObjectName(u"fileButton")
-        self.fileButton.setMinimumSize(QSize(0, 30))
-        icon2 = QIcon()
-        icon2.addFile(u":/Other/icons/document_new.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
-        self.fileButton.setIcon(icon2)
-
-        self.gridLayout_4.addWidget(self.fileButton, 0, 3, 1, 1)
-
-        self.deviceBox = QComboBox(self.buttonWidget)
-        self.deviceBox.setObjectName(u"deviceBox")
-        self.deviceBox.setMinimumSize(QSize(0, 28))
-
-        self.gridLayout_4.addWidget(self.deviceBox, 1, 0, 1, 1)
-
-        self.formatBox = QComboBox(self.buttonWidget)
-        self.formatBox.setObjectName(u"formatBox")
-        self.formatBox.setMinimumSize(QSize(0, 28))
-
-        self.gridLayout_4.addWidget(self.formatBox, 1, 3, 1, 1)
-
-        self.convertButton = QPushButton(self.buttonWidget)
-        self.convertButton.setObjectName(u"convertButton")
-        self.convertButton.setMinimumSize(QSize(0, 30))
-        font = QFont()
-        font.setBold(True)
-        self.convertButton.setFont(font)
-        icon3 = QIcon()
-        icon3.addFile(u":/Other/icons/convert.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
-        self.convertButton.setIcon(icon3)
-
-        self.gridLayout_4.addWidget(self.convertButton, 1, 2, 1, 1)
-
-        self.clearButton = QPushButton(self.buttonWidget)
-        self.clearButton.setObjectName(u"clearButton")
-        self.clearButton.setMinimumSize(QSize(0, 30))
-        icon4 = QIcon()
-        icon4.addFile(u":/Other/icons/clear.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
-        self.clearButton.setIcon(icon4)
-
-        self.gridLayout_4.addWidget(self.clearButton, 0, 2, 1, 1)
-
-        self.directoryButton.raise_()
-        self.clearButton.raise_()
-        self.fileButton.raise_()
-        self.deviceBox.raise_()
-        self.convertButton.raise_()
-        self.formatBox.raise_()
-
-        self.gridLayout.addWidget(self.buttonWidget, 3, 0, 1, 2)
-
-        self.toolWidget = QWidget(self.centralWidget)
-        self.toolWidget.setObjectName(u"toolWidget")
-        self.horizontalLayout = QHBoxLayout(self.toolWidget)
-        self.horizontalLayout.setObjectName(u"horizontalLayout")
-        self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
-        self.editorButton = QPushButton(self.toolWidget)
-        self.editorButton.setObjectName(u"editorButton")
-        self.editorButton.setMinimumSize(QSize(0, 30))
-        icon5 = QIcon()
-        icon5.addFile(u":/Other/icons/editor.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
-        self.editorButton.setIcon(icon5)
-
-        self.horizontalLayout.addWidget(self.editorButton)
-
-        self.wikiButton = QPushButton(self.toolWidget)
-        self.wikiButton.setObjectName(u"wikiButton")
-        self.wikiButton.setMinimumSize(QSize(0, 30))
-        icon6 = QIcon()
-        icon6.addFile(u":/Other/icons/wiki.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
-        self.wikiButton.setIcon(icon6)
-
-        self.horizontalLayout.addWidget(self.wikiButton)
-
-
-        self.gridLayout.addWidget(self.toolWidget, 0, 0, 1, 2)
-
-        self.jobList = QListWidget(self.centralWidget)
-        self.jobList.setObjectName(u"jobList")
-        self.jobList.setStyleSheet(u"")
-        self.jobList.setSelectionMode(QAbstractItemView.SelectionMode.NoSelection)
-        self.jobList.setVerticalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
-        self.jobList.setHorizontalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
-
-        self.gridLayout.addWidget(self.jobList, 2, 0, 1, 2)
-
-        self.progressBar = QProgressBar(self.centralWidget)
-        self.progressBar.setObjectName(u"progressBar")
-        self.progressBar.setMinimumSize(QSize(0, 30))
-        self.progressBar.setFont(font)
-        self.progressBar.setVisible(False)
-        self.progressBar.setAlignment(Qt.AlignmentFlag.AlignJustify|Qt.AlignmentFlag.AlignVCenter)
-
-        self.gridLayout.addWidget(self.progressBar, 1, 0, 1, 2)
-
-        self.customWidget = QWidget(self.centralWidget)
-        self.customWidget.setObjectName(u"customWidget")
-        self.customWidget.setVisible(False)
-        self.gridLayout_3 = QGridLayout(self.customWidget)
-        self.gridLayout_3.setObjectName(u"gridLayout_3")
-        self.gridLayout_3.setContentsMargins(0, 0, 0, 0)
-        self.hLabel = QLabel(self.customWidget)
-        self.hLabel.setObjectName(u"hLabel")
-        sizePolicy2 = QSizePolicy(QSizePolicy.Policy.Fixed, QSizePolicy.Policy.Preferred)
-        sizePolicy2.setHorizontalStretch(0)
-        sizePolicy2.setVerticalStretch(0)
-        sizePolicy2.setHeightForWidth(self.hLabel.sizePolicy().hasHeightForWidth())
-        self.hLabel.setSizePolicy(sizePolicy2)
-
-        self.gridLayout_3.addWidget(self.hLabel, 0, 2, 1, 1)
-
-        self.widthBox = QSpinBox(self.customWidget)
-        self.widthBox.setObjectName(u"widthBox")
-        self.widthBox.setMaximum(2160)
-
-        self.gridLayout_3.addWidget(self.widthBox, 0, 1, 1, 1)
-
-        self.wLabel = QLabel(self.customWidget)
-        self.wLabel.setObjectName(u"wLabel")
-        sizePolicy2.setHeightForWidth(self.wLabel.sizePolicy().hasHeightForWidth())
-        self.wLabel.setSizePolicy(sizePolicy2)
-
-        self.gridLayout_3.addWidget(self.wLabel, 0, 0, 1, 1)
-
-        self.heightBox = QSpinBox(self.customWidget)
-        self.heightBox.setObjectName(u"heightBox")
-        self.heightBox.setMaximum(3840)
-
-        self.gridLayout_3.addWidget(self.heightBox, 0, 3, 1, 1)
-
-
-        self.gridLayout.addWidget(self.customWidget, 7, 0, 1, 2)
+        self.gridLayout.addWidget(self.chunkSizeWidget, 6, 0, 1, 1)

        mainWindow.setCentralWidget(self.centralWidget)
        self.statusBar = QStatusBar(mainWindow)
@@ -367,18 +427,23 @@ class Ui_mainWindow(object):
        QWidget.setTabOrder(self.gammaBox, self.borderBox)
        QWidget.setTabOrder(self.borderBox, self.outputSplit)
        QWidget.setTabOrder(self.outputSplit, self.colorBox)
-        QWidget.setTabOrder(self.colorBox, self.croppingBox)
-        QWidget.setTabOrder(self.croppingBox, self.mozJpegBox)
+        QWidget.setTabOrder(self.colorBox, self.mozJpegBox)
        QWidget.setTabOrder(self.mozJpegBox, self.maximizeStrips)
-        QWidget.setTabOrder(self.maximizeStrips, self.deleteBox)
+        QWidget.setTabOrder(self.maximizeStrips, self.croppingBox)
+        QWidget.setTabOrder(self.croppingBox, self.spreadShiftBox)
+        QWidget.setTabOrder(self.spreadShiftBox, self.deleteBox)
        QWidget.setTabOrder(self.deleteBox, self.disableProcessingBox)
-        QWidget.setTabOrder(self.disableProcessingBox, self.editorButton)
+        QWidget.setTabOrder(self.disableProcessingBox, self.chunkSizeBox)
+        QWidget.setTabOrder(self.chunkSizeBox, self.noRotateBox)
+        QWidget.setTabOrder(self.noRotateBox, self.interPanelCropBox)
+        QWidget.setTabOrder(self.interPanelCropBox, self.reduceRainbowBox)
+        QWidget.setTabOrder(self.reduceRainbowBox, self.heightBox)
+        QWidget.setTabOrder(self.heightBox, self.croppingPowerSlider)
+        QWidget.setTabOrder(self.croppingPowerSlider, self.editorButton)
        QWidget.setTabOrder(self.editorButton, self.wikiButton)
        QWidget.setTabOrder(self.wikiButton, self.jobList)
        QWidget.setTabOrder(self.jobList, self.gammaSlider)
        QWidget.setTabOrder(self.gammaSlider, self.widthBox)
-        QWidget.setTabOrder(self.widthBox, self.heightBox)
-        QWidget.setTabOrder(self.heightBox, self.croppingPowerSlider)

        self.retranslateUi(mainWindow)

@@ -387,6 +452,49 @@ class Ui_mainWindow(object):

    def retranslateUi(self, mainWindow):
        mainWindow.setWindowTitle(QCoreApplication.translate("mainWindow", u"Kindle Comic Converter", None))
+#if QT_CONFIG(tooltip)
+        self.editorButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Shift+Click to edit directory.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.editorButton.setText(QCoreApplication.translate("mainWindow", u"Metadata Editor", None))
+        self.wikiButton.setText(QCoreApplication.translate("mainWindow", u"Wiki", None))
+#if QT_CONFIG(tooltip)
+        self.directoryButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Add directory containing JPG, PNG or GIF files to queue.<br/><span style=\" font-weight:600;\">CBR, CBZ and CB7 files inside will not be processed!</span></p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.directoryButton.setText(QCoreApplication.translate("mainWindow", u"Add image folder", None))
+#if QT_CONFIG(tooltip)
+        self.fileButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Add CBR, CBZ, CB7 or PDF file to queue.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.fileButton.setText(QCoreApplication.translate("mainWindow", u"Add file(s)", None))
+#if QT_CONFIG(tooltip)
+        self.deviceBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Target device.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+#if QT_CONFIG(tooltip)
+        self.formatBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Output format.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+#if QT_CONFIG(tooltip)
+        self.convertButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Shift+Click to select the output directory.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.convertButton.setText(QCoreApplication.translate("mainWindow", u"Convert", None))
+        self.clearButton.setText(QCoreApplication.translate("mainWindow", u"Clear list", None))
+#if QT_CONFIG(tooltip)
+        self.hLabel.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.hLabel.setText(QCoreApplication.translate("mainWindow", u"Custom height:", None))
+#if QT_CONFIG(tooltip)
+        self.widthBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+#if QT_CONFIG(tooltip)
+        self.wLabel.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.wLabel.setText(QCoreApplication.translate("mainWindow", u"Custom width:", None))
+#if QT_CONFIG(tooltip)
+        self.heightBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+#if QT_CONFIG(tooltip)
+        self.preserveMarginLabel.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p>After calculating the cropping boundaries, &quot;back up&quot; a specified percentage amount.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.preserveMarginLabel.setText(QCoreApplication.translate("mainWindow", u"Preserve Margin %", None))
+        self.croppingPowerLabel.setText(QCoreApplication.translate("mainWindow", u"Cropping power:", None))
 #if QT_CONFIG(tooltip)
        self.croppingBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p><span style=\" font-weight:600; text-decoration: underline;\">Unchecked - Disabled</span></p><p>Disabled</p><p><span style=\" font-weight:600; text-decoration: underline;\">Indeterminate - Margins<br/></span>Margins</p><p><span style=\" font-weight:600; text-decoration: underline;\">Checked - Margins + page numbers<br/></span>Margins +page numbers</p></body></html>", None))
 #endif // QT_CONFIG(tooltip)
@@ -424,7 +532,7 @@ class Ui_mainWindow(object):
 #endif // QT_CONFIG(tooltip)
        self.qualityBox.setText(QCoreApplication.translate("mainWindow", u"Panel View 4/2/HQ", None))
 #if QT_CONFIG(tooltip)
-        self.disableProcessingBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><pre style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Do not process any image, ignore profile and processing options</pre></body></html>", None))
+        self.disableProcessingBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Do not process any image, ignore profile and processing options.</p></body></html>", None))
 #endif // QT_CONFIG(tooltip)
        self.disableProcessingBox.setText(QCoreApplication.translate("mainWindow", u"Disable processing", None))
 #if QT_CONFIG(tooltip)
@@ -462,46 +570,16 @@ class Ui_mainWindow(object):
 #if QT_CONFIG(tooltip)
        self.reduceRainbowBox.setToolTip(QCoreApplication.translate("mainWindow", u"Reduce rainbow effect on color eink by slightly blurring images", None))
 #endif // QT_CONFIG(tooltip)
-        self.reduceRainbowBox.setText(QCoreApplication.translate("mainWindow", u"Reduce Rainbow", None))
+        self.reduceRainbowBox.setText(QCoreApplication.translate("mainWindow", u"Rainbow blur", None))
+#if QT_CONFIG(tooltip)
+        self.chunkSizeCheckBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p><span style=\" font-weight:700; text-decoration: underline;\">Unchecked<br/></span>Maximal output file size is 100 MB for Webtoon, 400 MB for others before split occurs.</p><p><span style=\" font-weight:700; text-decoration: underline;\">Checked</span><br/>Output file size specified in &quot;Chunk size MB&quot; before split occurs.</p></body></html>", None))
+#endif // QT_CONFIG(tooltip)
+        self.chunkSizeCheckBox.setText(QCoreApplication.translate("mainWindow", u"Chunk size", None))
        self.gammaLabel.setText(QCoreApplication.translate("mainWindow", u"Gamma: Auto", None))
-        self.croppingPowerLabel.setText(QCoreApplication.translate("mainWindow", u"Cropping power:", None))
 #if QT_CONFIG(tooltip)
-        self.directoryButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Add directory containing JPG, PNG or GIF files to queue.<br/><span style=\" font-weight:600;\">CBR, CBZ and CB7 files inside will not be processed!</span></p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-        self.directoryButton.setText(QCoreApplication.translate("mainWindow", u"Add directory", None))
-#if QT_CONFIG(tooltip)
-        self.fileButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Add CBR, CBZ, CB7 or PDF file to queue.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-        self.fileButton.setText(QCoreApplication.translate("mainWindow", u"Add file", None))
-#if QT_CONFIG(tooltip)
-        self.deviceBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Target device.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-#if QT_CONFIG(tooltip)
-        self.formatBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Output format.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-#if QT_CONFIG(tooltip)
-        self.convertButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Shift+Click to select the output directory.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-        self.convertButton.setText(QCoreApplication.translate("mainWindow", u"Convert", None))
-        self.clearButton.setText(QCoreApplication.translate("mainWindow", u"Clear list", None))
-#if QT_CONFIG(tooltip)
-        self.editorButton.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Shift+Click to edit directory.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-        self.editorButton.setText(QCoreApplication.translate("mainWindow", u"Metadata Editor", None))
-        self.wikiButton.setText(QCoreApplication.translate("mainWindow", u"Wiki", None))
-#if QT_CONFIG(tooltip)
-        self.hLabel.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-        self.hLabel.setText(QCoreApplication.translate("mainWindow", u"Custom height:", None))
-#if QT_CONFIG(tooltip)
-        self.widthBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-#if QT_CONFIG(tooltip)
-        self.wLabel.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
-#endif // QT_CONFIG(tooltip)
-        self.wLabel.setText(QCoreApplication.translate("mainWindow", u"Custom width:", None))
-#if QT_CONFIG(tooltip)
-        self.heightBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p style='white-space:pre'>Resolution of the target device.</p></body></html>", None))
+        self.chunkSizeWidget.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p>Warning: chunk size greater than default may cause<br/>performance/battery issues, especially on older devices.</p></body></html>", None))
 #endif // QT_CONFIG(tooltip)
+        self.chunkSizeLabel.setText(QCoreApplication.translate("mainWindow", u"Chunk size MB:", None))
+        self.chunkSizeWarnLabel.setText(QCoreApplication.translate("mainWindow", u"Greater than default may cause performance issues on older ereaders.", None))
    # retranslateUi

--- a/kindlecomicconverter/KCC_ui_editor.py
+++ b/kindlecomicconverter/KCC_ui_editor.py
@@ -3,7 +3,7 @@
 ################################################################################
 ## Form generated from reading UI file 'MetaEditor.ui'
 ##
-## Created by: Qt User Interface Compiler version 6.8.1
+## Created by: Qt User Interface Compiler version 6.8.2
 ##
 ## WARNING! All changes made in this file will be lost when recompiling UI file!
 ################################################################################
--- a/kindlecomicconverter/init.py
+++ b/kindlecomicconverter/init.py
@@ -1,4 +1,4 @@
-__version__ = '7.2.1'
+__version__ = '7.4.1'
 __license__ = 'ISC'
 __copyright__ = '2012-2022, Ciro Mattia Gonano <ciromattia@gmail.com>, Pawel Jastrzebski <pawelj@iosphe.re>, darodi'
 __docformat__ = 'restructuredtext en'
--- a/kindlecomicconverter/comic2ebook.py
+++ b/kindlecomicconverter/comic2ebook.py
@@ -23,7 +23,7 @@ import pathlib
 import re
 import sys
 from argparse import ArgumentParser
-from time import strftime, gmtime
+from time import perf_counter, strftime, gmtime
 from copy import copy
 from glob import glob, escape
 from re import sub
@@ -33,14 +33,14 @@ from tempfile import mkdtemp, gettempdir, TemporaryFile
 from shutil import move, copytree, rmtree, copyfile
 from multiprocessing import Pool
 from uuid import uuid4
-from natsort import os_sorted
+from natsort import os_sort_keygen
 from slugify import slugify as slugify_ext
 from PIL import Image, ImageFile
 from subprocess import STDOUT, PIPE
 from psutil import virtual_memory, disk_usage
 from html import escape as hescape

-from .shared import md5Checksum, getImageFileName, walkSort, walkLevel, sanitizeTrace, subprocess_run
+from .shared import available_archive_tools, getImageFileName, walkSort, walkLevel, sanitizeTrace, subprocess_run
 from . import comic2panel
 from . import image
 from . import comicarchive
@@ -51,7 +51,7 @@ from . import kindle
 from . import __version__

 ImageFile.LOAD_TRUNCATED_IMAGES = True
-
+OS_SORT_KEY = os_sort_keygen()

 def main(argv=None):
    global options
@@ -78,14 +78,14 @@ def main(argv=None):


 def buildHTML(path, imgfile, imgfilepath):
-    imgfilepath = md5Checksum(imgfilepath)
+    key = pathlib.Path(imgfilepath).name
    filename = getImageFileName(imgfile)
    deviceres = options.profileData[1]
-    if not options.noprocessing and "Rotated" in options.imgMetadata[imgfilepath]:
+    if not options.noprocessing and "Rotated" in options.imgMetadata[key]:
        rotatedPage = True
    else:
        rotatedPage = False
-    if not options.noprocessing and "BlackBackground" in options.imgMetadata[imgfilepath]:
+    if not options.noprocessing and "BlackBackground" in options.imgMetadata[key]:
        additionalStyle = 'background-color:#000000;'
    else:
        additionalStyle = ''
@@ -119,6 +119,8 @@ def buildHTML(path, imgfile, imgfilepath):
                  "</head>\n",
                  "<body style=\"" + additionalStyle + "\">\n",
                  "<div style=\"text-align:center;top:" + getTopMargin(deviceres, imgsizeframe) + "%;\">\n",
+                  # this display none div fixes formatting issues with virtual panel mode, for some reason
+                  '<div style="display:none;">.</div>\n',
                  "<img width=\"" + str(imgsizeframe[0]) + "\" height=\"" + str(imgsizeframe[1]) + "\" ",
                  "src=\"", "../" * backref, "Images/", postfix, imgfile, "\"/>\n</div>\n"])
    if options.iskindle and options.panelview:
@@ -216,7 +218,7 @@ def buildNCX(dstdir, title, chapters, chapternames):
        folder = chapter[0].replace(os.path.join(dstdir, 'OEBPS'), '').lstrip('/').lstrip('\\\\')
        filename = getImageFileName(os.path.join(folder, chapter[1]))
        navID = folder.replace('/', '_').replace('\\', '_')
-        if options.chapters:
+        if options.comicinfo_chapters:
            title = chapternames[chapter[1]]
            navID = filename[0].replace('/', '_').replace('\\', '_')
        elif os.path.basename(folder) != "Text":
@@ -244,7 +246,7 @@ def buildNAV(dstdir, title, chapters, chapternames):
    for chapter in chapters:
        folder = chapter[0].replace(os.path.join(dstdir, 'OEBPS'), '').lstrip('/').lstrip('\\\\')
        filename = getImageFileName(os.path.join(folder, chapter[1]))
-        if options.chapters:
+        if options.comicinfo_chapters:
            title = chapternames[chapter[1]]
        elif os.path.basename(folder) != "Text":
            title = chapternames[os.path.basename(folder)]
@@ -256,7 +258,7 @@ def buildNAV(dstdir, title, chapters, chapternames):
    for chapter in chapters:
        folder = chapter[0].replace(os.path.join(dstdir, 'OEBPS'), '').lstrip('/').lstrip('\\\\')
        filename = getImageFileName(os.path.join(folder, chapter[1]))
-        if options.chapters:
+        if options.comicinfo_chapters:
            title = chapternames[chapter[1]]
        elif os.path.basename(folder) != "Text":
            title = chapternames[os.path.basename(folder)]
@@ -358,19 +360,19 @@ def buildOPF(dstdir, title, filelist, cover=None):
            pageside = "right"
    for entry in reflist:
        if options.righttoleft:
-            if entry.endswith("-a"):
+            if entry.endswith("-kcc-a"):
                f.write(
                    "<itemref idref=\"page_%s\" %s/>\n" % (entry,
                                                            pageSpreadProperty("center"))
                )
                pageside = "right"
-            elif entry.endswith("-b"):
+            elif entry.endswith("-kcc-b"):
                f.write(
                    "<itemref idref=\"page_%s\" %s/>\n" % (entry,
                                                            pageSpreadProperty("right"))
                )
                pageside = "right"
-            elif entry.endswith("-c"):
+            elif entry.endswith("-kcc-c"):
                f.write(
                    "<itemref idref=\"page_%s\" %s/>\n" % (entry,
                                                            pageSpreadProperty("left"))
@@ -386,19 +388,19 @@ def buildOPF(dstdir, title, filelist, cover=None):
                else:
                    pageside = "right"
        else:
-            if entry.endswith("-a"):
+            if entry.endswith("-kcc-a"):
                f.write(
                    "<itemref idref=\"page_%s\" %s/>\n" % (entry,
                                                            pageSpreadProperty("center"))
                )
                pageside = "left"
-            elif entry.endswith("-b"):
+            elif entry.endswith("-kcc-b"):
                f.write(
                    "<itemref idref=\"page_%s\" %s/>\n" % (entry,
                                                            pageSpreadProperty("left"))
                )
                pageside = "left"
-            elif entry.endswith("-c"):
+            elif entry.endswith("-kcc-c"):
                f.write(
                    "<itemref idref=\"page_%s\" %s/>\n" % (entry,
                                                            pageSpreadProperty("right"))
@@ -425,7 +427,6 @@ def buildOPF(dstdir, title, filelist, cover=None):
                  "</container>"])
    f.close()

-
 def buildEPUB(path, chapternames, tomenumber, ischunked):
    filelist = []
    chapterlist = []
@@ -506,6 +507,7 @@ def buildEPUB(path, chapternames, tomenumber, ischunked):
                      "display: none;\n",
                      "}\n"])
    f.close()
+    build_html_start = perf_counter()
    for dirpath, dirnames, filenames in os.walk(os.path.join(path, 'OEBPS', 'Images')):
        chapter = False
        dirnames, filenames = walkSort(dirnames, filenames)
@@ -515,12 +517,17 @@ def buildEPUB(path, chapternames, tomenumber, ischunked):
                                     'cover' + getImageFileName(afile)[1])
                options.covers.append((image.Cover(os.path.join(dirpath, afile), cover, options,
                                                   tomenumber), options.uuid))
-            filelist.append(buildHTML(dirpath, afile, os.path.join(dirpath, afile)))
            if not chapter:
-                chapterlist.append((dirpath.replace('Images', 'Text'), filelist[-1][1]))
+                chapterlist.append((dirpath.replace('Images', 'Text'), afile))
                chapter = True
+            filelist.append(buildHTML(dirpath, afile, os.path.join(dirpath, afile)))
+    build_html_end = perf_counter()
+    print(f"buildHTML: {build_html_end - build_html_start} seconds")
    # Overwrite chapternames if tree is flat and ComicInfo.xml has bookmarks
-    if not chapternames and options.chapters and not ischunked:
+    if ischunked:
+       options.comicinfo_chapters = []
+    
+    if not chapternames and options.comicinfo_chapters:
        chapterlist = []

        global_diff = 0
@@ -533,7 +540,7 @@ def buildEPUB(path, chapternames, tomenumber, ischunked):
        elif options.splitter == 2:
            diff_delta = 2

-        for aChapter in options.chapters:
+        for aChapter in options.comicinfo_chapters:
            pageid = aChapter[0]
            cur_diff = global_diff
            global_diff = 0
@@ -556,7 +563,6 @@ def imgDirectoryProcessing(path):
    workerPool = Pool(maxtasksperchild=100)
    workerOutput = []
    options.imgMetadata = {}
-    options.imgOld = []
    work = []
    pagenumber = 0
    for dirpath, _, filenames in os.walk(path):
@@ -566,19 +572,19 @@ def imgDirectoryProcessing(path):
    if GUI:
        GUI.progressBarTick.emit(str(pagenumber))
    if len(work) > 0:
+        img_processing_start = perf_counter()
        for i in work:
            workerPool.apply_async(func=imgFileProcessing, args=(i,), callback=imgFileProcessingTick)
        workerPool.close()
        workerPool.join()
+        img_processing_end = perf_counter()
+        print(f"imgFileProcessing: {img_processing_end - img_processing_start} seconds")
        if GUI and not GUI.conversionAlive:
            rmtree(os.path.join(path, '..', '..'), True)
            raise UserWarning("Conversion interrupted.")
        if len(workerOutput) > 0:
            rmtree(os.path.join(path, '..', '..'), True)
            raise RuntimeError("One of workers crashed. Cause: " + workerOutput[0][0], workerOutput[0][1])
-        for file in options.imgOld:
-            if os.path.isfile(file):
-                os.remove(file)
    else:
        rmtree(os.path.join(path, '..', '..'), True)
        raise UserWarning("Source directory is empty.")
@@ -592,7 +598,6 @@ def imgFileProcessingTick(output):
        for page in output:
            if page is not None:
                options.imgMetadata[page[0]] = page[1]
-                options.imgOld.append(page[2])
    if GUI:
        GUI.progressBarTick.emit('tick')
        if not GUI.conversionAlive:
@@ -610,7 +615,7 @@ def imgFileProcessing(work):
            img = image.ComicPage(opt, *i)
            if opt.cropping == 2 and not opt.webtoon:
                img.cropPageNumber(opt.croppingp, opt.croppingm)
-            if opt.cropping > 0 and not opt.webtoon:
+            if opt.cropping == 1 and not opt.webtoon:
                img.cropMargin(opt.croppingp, opt.croppingm)
            if opt.interpanelcrop > 0:
                img.cropInterPanelEmptySections("horizontal" if opt.interpanelcrop == 1 else "both")
@@ -657,16 +662,14 @@ def getWorkFolder(afile):
                path = cbx.extract(workdir)
                sanitizePermissions(path)
                tdir = os.listdir(workdir)
-                is_nested_single_dir = False
                if len(tdir) == 2 and 'ComicInfo.xml' in tdir:
                    tdir.remove('ComicInfo.xml')
-                    is_nested_single_dir = os.path.isdir(os.path.join(workdir, tdir[0]))
-                    if is_nested_single_dir:
+                    if os.path.isdir(os.path.join(workdir, tdir[0])):
                        os.replace(
                            os.path.join(workdir, 'ComicInfo.xml'),
                            os.path.join(workdir, tdir[0], 'ComicInfo.xml')
                        )
-                if len(tdir) == 1 and is_nested_single_dir:
+                if len(tdir) == 1 and os.path.isdir(os.path.join(workdir, tdir[0])):
                    path = os.path.join(workdir, tdir[0])           
            except OSError as e:
                rmtree(workdir, True)
@@ -674,8 +677,7 @@ def getWorkFolder(afile):
    else:
        raise UserWarning("Failed to open source file/directory.")
    newpath = mkdtemp('', 'KCC-', os.path.dirname(afile))
-    copytree(path, os.path.join(newpath, 'OEBPS', 'Images'))
-    rmtree(workdir, True)
+    os.renames(path, os.path.join(newpath, 'OEBPS', 'Images'))
    return newpath


@@ -716,7 +718,7 @@ def getOutputFilename(srcpath, wantedname, ext, tomenumber):

 def getComicInfo(path, originalpath):
    xmlPath = os.path.join(path, 'ComicInfo.xml')
-    options.chapters = []
+    options.comicinfo_chapters = []
    options.summary = ''
    titleSuffix = ''
    if options.title == 'defaulttitle':
@@ -739,9 +741,7 @@ def getComicInfo(path, originalpath):
        except Exception:
            os.remove(xmlPath)
            return
-        if xml.data['Title']:
-            options.title = hescape(xml.data['Title'])
-        elif defaultTitle:
+        if defaultTitle:
            if xml.data['Series']:
                options.title = hescape(xml.data['Series'])
            if xml.data['Volume']:
@@ -760,7 +760,7 @@ def getComicInfo(path, originalpath):
            else:
                options.authors = ['KCC']
        if xml.data['Bookmarks']:
-            options.chapters = xml.data['Bookmarks']
+            options.comicinfo_chapters = xml.data['Bookmarks']
        if xml.data['Summary']:
            options.summary = hescape(xml.data['Summary'])
        os.remove(xmlPath)
@@ -793,22 +793,22 @@ def getPanelViewSize(deviceres, size):

 def sanitizeTree(filetree):
    chapterNames = {}
-    for root, dirs, files in os.walk(filetree, False):
-        for i, name in enumerate(os_sorted(files)):
+    page = 1
+    for root, dirs, files in os.walk(filetree):
+        dirs.sort(key=OS_SORT_KEY)
+        files.sort(key=OS_SORT_KEY)
+        for name in files:
            splitname = os.path.splitext(name)

-            # file needs kcc at front AND back to avoid renaming issues
-            slugified = f'kcc-{i:04}'
-            for suffix in '-KCC', '-KCC-A', '-KCC-B', '-KCC-C':
-                if splitname[0].endswith(suffix):
-                    slugified += suffix.lower()
-                    break
+            # 9999 page limit
+            slugified = f'kcc-{page:04}'
+            page += 1

            newKey = os.path.join(root, slugified + splitname[1])
            key = os.path.join(root, name)
            if key != newKey:
                os.replace(key, newKey)
-        for name in dirs:
+        for i, name in enumerate(dirs):
            tmpName = name
            slugified = slugify(name)
            while os.path.exists(os.path.join(root, slugified)) and name.upper() != slugified.upper():
@@ -818,9 +818,18 @@ def sanitizeTree(filetree):
            key = os.path.join(root, name)
            if key != newKey:
                os.replace(key, newKey)
+                dirs[i] = newKey
    return chapterNames


+def flattenTree(filetree):
+    for root, dirs, files in os.walk(filetree, topdown=False):
+        for name in files:
+            os.rename(os.path.join(root, name), os.path.join(filetree, name))
+        for name in dirs:
+            os.rmdir(os.path.join(root, name))
+
+
 def sanitizePermissions(filetree):
    for root, dirs, files in os.walk(filetree, False):
        for name in files:
@@ -836,7 +845,8 @@ def chunk_directory(path):
            if getImageFileName(f):
                newLevel = os.path.join(root, f).replace(os.path.join(path, 'OEBPS', 'Images'), '').count(os.sep)
                if level != -1 and level != newLevel:
-                    level = 0
+                    flattenTree(os.path.join(path, 'OEBPS', 'Images'))
+                    level = 1
                    break
                else:
                    level = newLevel
@@ -863,6 +873,14 @@ def chunk_process(path, mode, parent):
        targetSize = 419430400
    if options.batchsplit == 2 and mode == 2:
        mode = 3
+    if options.batchsplit == 1 and mode == 2:
+        with os.scandir(path) as it:
+            for entry in it:
+                if not entry.name.startswith('.') and entry.is_dir():
+                    if getDirectorySize(os.path.join(path, entry)) > targetSize:
+                        flattenTree(path)
+                        mode = 1
+                        break
    if mode < 3:
        for root, dirs, files in walkLevel(path, 0):
            for name in files if mode == 1 else dirs:
@@ -890,8 +908,7 @@ def chunk_process(path, mode, parent):
                    firstTome = False
    return output

-
-def detectCorruption(tmppath, orgpath):
+def detectSuboptimalProcessing(tmppath, orgpath):
    imageNumber = 0
    imageSmaller = 0
    alreadyProcessed = False
@@ -907,9 +924,6 @@ def detectCorruption(tmppath, orgpath):
                    raise RuntimeError('Image file %s is corrupted.' % pathOrg)
                try:
                    img = Image.open(path)
-                    img.verify()
-                    img = Image.open(path)
-                    img.load()
                    imageNumber += 1
                    if options.profileData[1][0] > img.size[0] and options.profileData[1][1] > img.size[1]:
                        imageSmaller += 1
@@ -924,6 +938,10 @@ def detectCorruption(tmppath, orgpath):
                    os.remove(os.path.join(root, name))
                except OSError as e:
                    raise RuntimeError(f"{name}: {e}")
+    # remove empty nested folders
+    for root, dirs, files in os.walk(tmppath, False):
+        if not files and not dirs:
+            os.rmdir(root)
    if alreadyProcessed:
        print("WARNING: Source files are probably created by KCC. The second conversion will decrease quality.")
        if GUI:
@@ -953,17 +971,27 @@ def slugify(value):


 def makeZIP(zipfilename, basedir, isepub=False):
+    start = perf_counter()
    zipfilename = os.path.abspath(zipfilename) + '.zip'
-    zipOutput = ZipFile(zipfilename, 'w', ZIP_DEFLATED)
-    if isepub:
-        zipOutput.writestr('mimetype', 'application/epub+zip', ZIP_STORED)
-    for dirpath, _, filenames in os.walk(basedir):
-        for name in filenames:
-            path = os.path.normpath(os.path.join(dirpath, name))
-            aPath = os.path.normpath(os.path.join(dirpath.replace(basedir, ''), name))
-            if os.path.isfile(path):
-                zipOutput.write(path, aPath)
-    zipOutput.close()
+    if '7z' in available_archive_tools():
+        if isepub:
+            mimetypeFile = open(os.path.join(basedir, 'mimetype'), 'w')
+            mimetypeFile.write('application/epub+zip')
+            mimetypeFile.close()
+        subprocess_run(['7z', 'a', '-tzip', zipfilename, os.path.join(basedir, "*")], capture_output=True, check=True)
+    else:
+        zipOutput = ZipFile(zipfilename, 'w', ZIP_DEFLATED)
+        if isepub:
+            zipOutput.writestr('mimetype', 'application/epub+zip', ZIP_STORED)
+        for dirpath, _, filenames in os.walk(basedir):
+            for name in filenames:
+                path = os.path.normpath(os.path.join(dirpath, name))
+                aPath = os.path.normpath(os.path.join(dirpath.replace(basedir, ''), name))
+                if os.path.isfile(path):
+                    zipOutput.write(path, aPath)
+        zipOutput.close()
+    end = perf_counter()
+    print(f"makeZIP time: {end - start} seconds")
    return zipfilename


@@ -1028,6 +1056,8 @@ def makeParser():
                                    help="Set cropping mode. 0: Disabled 1: Margins 2: Margins + page numbers [Default=2]")
    processing_options.add_argument("--cp", "--croppingpower", type=float, dest="croppingp", default="1.0",
                                    help="Set cropping power [Default=1.0]")
+    processing_options.add_argument("--preservemargin", type=int, dest="preservemargin", default="0",
+                                    help="After calculating crop, back up specified percentage amount. [Default=0]")
    processing_options.add_argument("--cm", "--croppingminimum", type=float, dest="croppingm", default="0.0",
                                    help="Set cropping minimum area ratio [Default=0.0]")
    processing_options.add_argument("--ipc", "--interpanelcrop", type=int, dest="interpanelcrop", default="0",
@@ -1071,6 +1101,12 @@ def checkOptions(options):
        options.format = 'EPUB'
        if options.batchsplit != 2:
            options.batchsplit = 1
+    if options.format == 'MOBI+EPUB-200MB':
+        options.keep_epub = True
+        options.targetsize = 195
+        options.format = 'MOBI'
+        if options.batchsplit != 2:
+            options.batchsplit = 1
    if options.format == 'MOBI+EPUB':
        options.keep_epub = True
        options.format = 'MOBI'
@@ -1097,6 +1133,9 @@ def checkOptions(options):
    if options.profile == 'K1' or options.profile == 'K2' or options.profile == 'K34' or options.profile == 'KDX':
        options.panelview = False
        options.hq = False
+    if options.profile == 'KV' or options.profile in image.ProfileData.ProfilesKindlePDOC.keys():
+        options.panelview = False
+        options.hq = False
    # Webtoon mode mandatory options
    if options.webtoon:
        options.panelview = False
@@ -1138,9 +1177,7 @@ def checkTools(source):
    source = source.upper()
    if source.endswith('.CB7') or source.endswith('.7Z') or source.endswith('.RAR') or source.endswith('.CBR') or \
            source.endswith('.ZIP') or source.endswith('.CBZ'):
-        try:
-            subprocess_run(['7z'], stdout=PIPE, stderr=STDOUT)
-        except FileNotFoundError:
+        if '7z' not in available_archive_tools():
            print('ERROR: 7z is missing!')
            sys.exit(1)
    if options.format == 'MOBI':
@@ -1170,6 +1207,7 @@ def checkPre(source):


 def makeBook(source, qtgui=None):
+    start = perf_counter()
    global GUI
    GUI = qtgui
    if GUI:
@@ -1181,7 +1219,8 @@ def makeBook(source, qtgui=None):
    path = getWorkFolder(source)
    print("Checking images...")
    getComicInfo(os.path.join(path, "OEBPS", "Images"), source)
-    detectCorruption(os.path.join(path, "OEBPS", "Images"), source)
+    detectSuboptimalProcessing(os.path.join(path, "OEBPS", "Images"), source)
+    chapterNames = sanitizeTree(os.path.join(path, 'OEBPS', 'Images'))
    if options.webtoon:
        y = image.ProfileData.Profiles[options.profile][1][1]
        comic2panel.main(['-y ' + str(y), '-i', '-m', path], qtgui)
@@ -1194,7 +1233,6 @@ def makeBook(source, qtgui=None):
        imgDirectoryProcessing(os.path.join(path, "OEBPS", "Images"))
    if GUI:
        GUI.progressBarTick.emit('1')
-    chapterNames = sanitizeTree(os.path.join(path, 'OEBPS', 'Images'))
    if options.batchsplit > 0:
        tomes = chunk_directory(path)
    else:
@@ -1272,6 +1310,8 @@ def makeBook(source, qtgui=None):
        elif os.path.isdir(source):
            rmtree(source)

+    end = perf_counter()
+    print(f"makeBook: {end - start} seconds")
    return filepath


--- a/kindlecomicconverter/comic2panel.py
+++ b/kindlecomicconverter/comic2panel.py
@@ -181,7 +181,7 @@ def splitImage(work):
                        panelImg = imgOrg.crop((0, panelsProcessed[panel][0], widthImg, panelsProcessed[panel][1]))
                        newPage.paste(panelImg, (0, targetHeight))
                        targetHeight += panelsProcessed[panel][2]
-                    newPage.save(os.path.join(path, os.path.splitext(name)[0] + '-' + str(pageNumber) + '.png'), 'PNG')
+                    newPage.save(os.path.join(path, os.path.splitext(name)[0] + '-' + str(pageNumber).zfill(4) + '.png'), 'PNG')
                    pageNumber += 1
            os.remove(filePath)
    except Exception:
--- a/kindlecomicconverter/comicarchive.py
+++ b/kindlecomicconverter/comicarchive.py
@@ -76,6 +76,8 @@ class ComicArchive:
                ['unar', self.filepath, '-f', '-o', targetdir]
            )

+        extraction_commands.reverse()
+
        if distro.id() == 'fedora' or distro.like() == 'fedora':
            extraction_commands.append(
                ['unrar', 'x', '-y', '-x__MACOSX', '-x.DS_Store', '-xthumbs.db', '-xThumbs.db', self.filepath, targetdir]
--- a/kindlecomicconverter/image.py
+++ b/kindlecomicconverter/image.py
@@ -20,9 +20,9 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 import io
 import os
+from pathlib import Path
 import mozjpeg_lossless_optimization
 from PIL import Image, ImageOps, ImageStat, ImageChops, ImageFilter
-from .shared import md5Checksum
 from .page_number_crop_alg import get_bbox_crop_margin_page_number, get_bbox_crop_margin
 from .inter_panel_crop_alg import crop_empty_inter_panel

@@ -141,7 +141,13 @@ class ComicPageParser:
        self.source = source
        self.size = self.opt.profileData[1]
        self.payload = []
-        self.image = Image.open(os.path.join(source[0], source[1])).convert('RGB')
+
+        # Detect corruption in source image, let caller catch any exceptions triggered.
+        srcImgPath = os.path.join(source[0], source[1])
+        self.image = Image.open(srcImgPath)
+        self.image.verify()
+        self.image = Image.open(srcImgPath).convert('RGB')
+
        self.color = self.colorCheck()
        self.fill = self.fillCheck()
        # backwards compatibility for Pillow >9.1.0
@@ -279,14 +285,15 @@ class ComicPage:
        self.rotated = False
        self.orgPath = os.path.join(path[0], path[1])
        if 'N' in mode:
-            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-KCC'
+            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-kcc'
        elif 'R' in mode:
-            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-KCC-A'
-            self.rotated = True
+            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-kcc-a'
+            if not options.norotate:
+                self.rotated = True
        elif 'S1' in mode:
-            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-KCC-B'
+            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-kcc-b'
        elif 'S2' in mode:
-            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-KCC-C'
+            self.targetPath = os.path.join(path[0], os.path.splitext(path[1])[0]) + '-kcc-c'
        # backwards compatibility for Pillow >9.1.0
        if not hasattr(Image, 'Resampling'):
            Image.Resampling = Image
@@ -315,7 +322,9 @@ class ComicPage:
                            output_jpeg_file.write(output_jpeg_bytes)
                else:
                    self.image.save(self.targetPath, 'JPEG', optimize=1, quality=85)
-            return [md5Checksum(self.targetPath), flags, self.orgPath]
+            if os.path.isfile(self.orgPath):
+                os.remove(self.orgPath)
+            return [Path(self.targetPath).name, flags]
        except IOError as err:
            raise RuntimeError('Cannot save image. ' + str(err))

@@ -382,6 +391,11 @@ class ComicPage:
            return Image.Resampling.LANCZOS

    def maybeCrop(self, box, minimum):
+        w, h = self.image.size
+        left, upper, right, lower = box
+        if self.opt.preservemargin:
+            ratio = 1 - self.opt.preservemargin / 100
+            box = left * ratio, upper * ratio, right + (w - right) * (1 - ratio), lower + (h - lower) * (1 - ratio)
        box_area = (box[2] - box[0]) * (box[3] - box[1])
        image_area = self.image.size[0] * self.image.size[1]
        if (box_area / image_area) >= minimum:
@@ -422,6 +436,17 @@ class Cover:
        self.image = ImageOps.autocontrast(self.image)
        if not self.options.forcecolor:
            self.image = self.image.convert('L')
+        w, h = self.image.size
+        if w / h > 2:
+            if self.options.righttoleft:
+                self.image = self.image.crop((w/6, 0, w/2 - w * 0.02, h))
+            else:
+                self.image = self.image.crop((w/2 + w * 0.02, 0, 5/6 * w, h))
+        elif w / h > 1.3:
+            if self.options.righttoleft:
+                self.image = self.image.crop((0, 0, w/2 - w * 0.03, h))
+            else:
+                self.image = self.image.crop((w/2 + w * 0.03, 0, w, h))
        self.image.thumbnail(self.options.profileData[1], Image.Resampling.LANCZOS)
        self.save()

--- a/kindlecomicconverter/shared.py
+++ b/kindlecomicconverter/shared.py
@@ -18,6 +18,7 @@
 # PERFORMANCE OF THIS SOFTWARE.
 #

+from functools import lru_cache
 import os
 from hashlib import md5
 from html.parser import HTMLParser
@@ -49,7 +50,11 @@ class HTMLStripper(HTMLParser):
 def getImageFileName(imgfile):
    name, ext = os.path.splitext(imgfile)
    ext = ext.lower()
-    if (name.startswith('.') and len(name) == 1) or ext not in ['.png', '.jpg', '.jpeg', '.gif', '.webp', '.jp2', '.j2k', '.jpx']:
+    if (name.startswith('.') and len(name) == 1):
+        return None
+    if name.startswith('._'):
+        return None
+    if ext not in ['.png', '.jpg', '.jpeg', '.gif', '.webp', '.jp2', '.j2k', '.jpx']:
        return None
    return [name, ext]

@@ -74,16 +79,6 @@ def walkLevel(some_dir, level=1):
            del dirs[:]


-def md5Checksum(fpath):
-    with open(fpath, 'rb') as fh:
-        m = md5()
-        while True:
-            data = fh.read(8192)
-            if not data:
-                break
-            m.update(data)
-        return m.hexdigest()
-

 def sanitizeTrace(traceback):
    return ''.join(format_tb(traceback))\
@@ -137,6 +132,19 @@ def dependencyCheck(level):
        print('ERROR: ' + ', '.join(missing) + ' is not installed!')
        sys.exit(1)

+@lru_cache
+def available_archive_tools():
+    available = []
+
+    for tool in ['tar', '7z', 'unar', 'unrar']:
+        try:
+            subprocess_run([tool], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+            available.append(tool)
+        except FileNotFoundError:
+            pass
+    
+    return available
+
 def subprocess_run(command, **kwargs):
    if (os.name == 'nt'):
        kwargs.setdefault('creationflags', subprocess.CREATE_NO_WINDOW)
Author	SHA1	Message	Date
Alex Xu	9f9a97afaa	bump 7.4.1	2025-04-18 22:13:26 -07:00
Alex Xu	d113cae154	fix ._ files (#907 )	2025-04-18 21:52:26 -07:00
Alex Xu	bc4afeb69e	remove video	2025-04-17 21:58:18 -07:00
Alex Xu	afb32f6287	add video to readme	2025-04-17 21:57:19 -07:00
Alex Xu	bc516634cf	Revert "build on Python 3.12 instead of Python 3.11 (#885 )" (#904 ) This reverts commit `80b01d298f`.	2025-04-17 09:53:40 -07:00
Alex Xu	36180f7904	Revert "fix Kindle Scribe panel view broken in 6.1.0 (#894 )" (#903 ) This reverts commit `1dd36e08eb`.	2025-04-17 09:17:47 -07:00
Alex Xu	3517994d37	bump 7.4.0	2025-04-17 08:19:06 -07:00
Alex Xu	08acad10ea	enable/disable panel view in Kindle Aa menu and landscape half page reading (#899 ) * enable virtual panel view for all kindles * only use old panel view method on older Kindles	2025-04-17 08:17:57 -07:00
Alex Xu	727df0c9d6	disable old panel view for new kindles (#902 )	2025-04-17 07:57:14 -07:00
Alex Xu	13e71df172	remove nested empty folders (#900 )	2025-04-16 23:07:41 -07:00
Alex Xu	3e7646bbad	rename buttons (#898 )	2025-04-15 15:50:32 -07:00
Alex Xu	1c81a9d5b3	fix panel view order for no rotate (#897 )	2025-04-15 15:38:03 -07:00
Alex Xu	efa831341c	disable Kindle Scribe upscale (#893 )	2025-04-08 10:28:24 -07:00
Alex Xu	1dd36e08eb	fix Kindle Scribe panel view broken in 6.1.0 (#894 )	2025-04-08 10:27:35 -07:00
Alex Xu	d9d5ce2423	Delete MANIFEST.in	2025-04-05 19:54:11 -07:00
lalo101097	83c6b7b2d5	Update comic2panel.py (#892 )	2025-04-05 12:33:33 -07:00
Alex Xu	55dfdd32f8	Update README.md	2025-04-05 08:54:11 -07:00
Alex Xu	3e3710dd76	Add preserve margin % toggle (#886 ) * preserve margin * set ratio to 0.5 * add preserve margin GUI * increase step size to 5 * remove clear * fix save * save preserveMarginBox * math * max 99	2025-04-03 10:11:14 -07:00
Alex Xu	41f87273ca	speed optimization: fix accidentally cropping pages twice (#889 ) * don't crop each page twice * Update comic2ebook.py	2025-03-30 08:58:35 -07:00
Alex Xu	b959739b53	For contributers, please "Sync fork" instead of "git merge" readme note (#888 )	2025-03-30 07:33:48 -07:00
Alex Xu	d1b66d16fd	rename reduce rainbow to rainbow blur (#887 )	2025-03-30 07:27:52 -07:00
Alex Xu	80b01d298f	build on Python 3.12 instead of Python 3.11 (#885 ) * use python 3.12 * bump to python 3.12	2025-03-29 20:39:34 -07:00
Antonio Panariello	de2aad0b9c	Add split size controls to GUI (#884 ) * Add split size GUI widget * Set split size and save GUI widget state in settings * Set max split size in GUI to 600 MB * Move chunk size control in middle column and widget on panel below. Added warning label and tooltip * Fix chunk size incorrectly enabled when webtoon active and format change * add 'on older ereaders' --------- Co-authored-by: Alex Xu <alexkurosakimh3@gmail.com>	2025-03-29 20:23:09 -07:00
Alex Xu	bc7ab0879c	Update README.md	2025-03-29 15:37:17 -07:00
Alex Xu	2ab0135815	Update README.md	2025-03-27 21:46:31 -07:00
Alex Xu	3882b6ce0a	Update README.md	2025-03-26 14:48:03 -07:00
Alex Xu	5e23e2cac1	add link to official macOS Amazon USB File Transfer MTP app (#883 )	2025-03-26 14:45:37 -07:00
Alex Xu	d36933cb9a	kfx is broken (#882 )	2025-03-26 14:33:33 -07:00
Alex Xu	e40cf29aa3	don't attempt to sign on forks (#881 ) * overwrite unsigned binary * only sign on ciromattia * Update package-windows.yml * only sign on ciromattia	2025-03-26 13:47:16 -07:00
Alex Xu	9d1802453c	Update package-windows-with-docker.yml	2025-03-26 13:46:02 -07:00
Alex Xu	4337d6c10d	try to crop only main cover from wide cover scan (#875 )	2025-03-21 10:17:23 -07:00
Alex Xu	9680ff24c2	split covers in half if too wide (#874 )	2025-03-18 21:23:34 -07:00
Alex Xu	48b5b4f397	Update README.md	2025-03-18 16:50:08 -07:00
Alex Xu	c712dc12a2	improve faq	2025-03-17 08:23:26 -07:00
Alex Xu	d2be9138c4	Update README.md	2025-03-16 20:49:30 -07:00
Alex Xu	3cb40772a4	update summary	2025-03-16 20:35:03 -07:00
Alex Xu	ef3b756247	fix unsupported directory structure and large mobi conversion stuck with nested folders by flattening folders (#869 )	2025-03-15 08:09:17 -07:00
Alex Xu	77af020abb	Update README.md	2025-03-13 14:30:37 -07:00
Alex Xu	1c9c6c13b4	Update README.md	2025-03-13 11:00:39 -07:00
Alex Xu	85ce39b2c3	Update README.md	2025-03-13 10:48:18 -07:00
simesherbs	6a33aee241	New "MOBI + EPUB (200MB)" output option (#866 ) * initial fix * initial * working, but mobi is a bit too large * changed target size to 190mb to account for mobi conversion size increase * changed target size back to 195 * removed debugging print statements * add trailing comma --------- Co-authored-by: Alex Xu <alexkurosakimh3@gmail.com>	2025-03-13 09:07:03 -07:00
Alex Xu	271a129537	bump 7.3.3	2025-03-12 19:10:29 -07:00
Alex Xu	23099cee81	fix landscape alignment (#865 )	2025-03-12 19:09:58 -07:00
simesherbs	b957fcf3fe	"Disable processing" tool tip font fix (#864 ) * initial fix * applied fix to appropriate file * changed .ui file and recompiled * final fixes	2025-03-12 18:46:30 -07:00
Alex Xu	187475a424	add SignPath to Windows GUI workflow (#862 )	2025-03-11 15:41:12 -07:00
Alex Xu	88fd54e2ba	bump 7.3.2	2025-03-11 15:30:02 -07:00
Alex Xu	b23b67bbbe	revert build windows gui with docker (#861 )	2025-03-11 15:29:33 -07:00
Alex Xu	9992d895cf	fix comicrack large files again (#860 )	2025-03-11 15:07:48 -07:00
Alex Xu	561951a349	restore imgMetadata dict (#858 ) * Revert "memory optimization: store metadata in filenames, not a global dict (…" This reverts commit `9a2a09eab9`. * only remove imgOld	2025-03-11 09:57:11 -07:00
Alex Xu	b8b7926366	use release-signing	2025-03-10 09:04:55 -07:00
Alex Xu	92f3308e1c	bump to 7.3.1	2025-03-10 08:59:18 -07:00
Alex Xu	9e87ccef4e	Free code signing on Windows provided by SignPath.io, certificate by SignPath Foundation	2025-03-10 08:58:37 -07:00
Alex Xu	9a2a09eab9	memory optimization: store metadata in filenames, not a global dict (#853 ) * remove options.imgMetadata and store metadata in filename * make kcc much more memory efficient by removing imgMetadata and imgOld dicts	2025-03-09 16:52:07 -07:00
Alex Xu	88cf2fd21f	fix sanitize-first bug	2025-03-09 16:50:15 -07:00
Vinh Quang Tran	7a3ed262b1	fix: disabled overriding title (#857 )	2025-03-09 16:22:34 -07:00
Alex Xu	9e204aad76	rename images before processing to fix splitting issues (#852 ) * rename images before processing to fix splitting issues * import pathlib * 9999 page limit	2025-03-07 07:59:04 -08:00
Alex Xu	e1f9d12676	add test-signing	2025-03-06 14:08:48 -08:00
Ciro Mattia Gonano	24ab72fcbc	Update LICENSE.txt to reflect Alex is current main maintainer	2025-03-06 12:06:55 +01:00
Ciro Mattia Gonano	4af6a75874	Update LICENSE.txt to reflect Alex is current main maintainer	2025-03-06 12:06:08 +01:00
Alex Xu	28b6188a3f	Delete appveyor.yml	2025-03-05 19:03:14 -08:00
iwa	f000af1207	Delete .travis.yml (#849 ) * Delete .travis.yml --------- Co-authored-by: Alex Xu <alexkurosakimh3@gmail.com>	2025-03-05 13:13:59 -08:00
Alex Xu	299f916580	add screenshot	2025-03-04 19:59:54 -08:00
Alex Xu	c39e403595	add screenshot	2025-03-04 19:58:24 -08:00
Alex Xu	e787dd2897	bump 7.3.0	2025-03-04 11:29:44 -08:00
Alex Xu	01625904d1	huge speed optimization on HDD by removing md5 (#845 ) * Eliminate unnecessary use of MD5 checksum md5checksum() computes the actual checksum of a specified file, which is appropriately expensive, but the code seemed to be using the checksum result as a key into the imgMetadata dictionary to avoid handling image files being renamed during processing steps. This seems like a very expensive way to handle the rename so instead, I now update the imgMetadata keys with the new filename in the one place that the rename happens, and avoid MD5 checksums entirely. * merge conflicts * Add missing handling for image path renames due to nested chapter folder name * merge conflicts * merge conflicts * add perf_counters * imgFileProcessing perf_counter * use startswith and removeprefix --------- Co-authored-by: utopiafallen <utopiafallen@gmail.com>	2025-03-04 11:28:23 -08:00
Alex Xu	5f8526da44	all image files have unique ordered names (#848 )	2025-03-03 07:50:21 -08:00
Alex Xu	1159e737a0	small correction to 7z (#847 )	2025-03-02 19:55:45 -08:00
Alex Xu	5bbdb715e9	7z is faster note	2025-03-02 12:39:51 -08:00
Alex Xu	1a3cd6c916	add perf_counter to makeBook (#846 )	2025-03-02 12:24:49 -08:00
Alex Xu	e1e6d587f4	makeZIP now prefers 7z for SPEED (#844 )	2025-03-02 11:08:27 -08:00
Alex Xu	ca5c0bdd61	fix error messages that only say a single number (#843 )	2025-03-01 19:40:55 -08:00
Alex Xu	c6f491d27e	bump 7.2.3	2025-02-28 20:44:45 -08:00
Alex Xu	c9ed3feef1	deprioritize tar (#842 )	2025-02-28 20:17:41 -08:00
Alex Xu	be147fe7e5	saves several seconds per file (#841 )	2025-02-28 20:11:11 -08:00
utopiafallen	62ffa2bc80	Improve processing performance by partially undoing "Refactored detection of corrupted files" Commit `f952634971` moved image corruption detection out from the ComicPage constructor and into a standalone detectCorruption() function. This led to a performance regression because now corruption detection happens in a single thread when it used to be distributed across worker threads, and because a source image is now loaded twice in memory: once during corruption detection and once when actually going to process the image. Image file corruption detection is now back inside the ComicPage constructor and the extra load() has been removed because the convert() call will automatically invoke load() and most likely throw the same exceptions.	2025-02-28 19:49:13 -08:00
Alex Xu	11186d07c0	fix file splitting/chunking for real in certain situations (#839 ) * fix file splitting without ComicInfo.xml * remove dead var	2025-02-28 19:19:11 -08:00
Alex Xu	4b3cd6882a	Revert "Build windows GUI version normally without docker" (#835 ) * Revert "remove GUI windows docker" This reverts commit `4fc5cc9dfb`. * build windows gui version with docker * cffi * bump 7.2.2	2025-02-25 08:57:40 -08:00