diff --git a/README.md b/README.md
index a091413..6379b8e 100644
--- a/README.md
+++ b/README.md
@@ -183,7 +183,7 @@ OUTPUT SETTINGS:
   --nokepub             If format is EPUB, output file with '.epub' extension rather than '.kepub.epub'
   -b BATCHSPLIT, --batchsplit BATCHSPLIT
                         Split output into multiple files. 0: Don't split 1: Automatic mode 2: Consider every subdirectory as separate volume [Default=0]
-  --dedupecover         De-duplicate the cover as the first page in the book
+  --spreadshift         Shift first page to opposite side in landscape for two page spread alignment
 
 CUSTOM PROFILE:
   --customwidth CUSTOMWIDTH
diff --git a/gui/KCC.ui b/gui/KCC.ui
index c6bab3c..b557ea0 100644
--- a/gui/KCC.ui
+++ b/gui/KCC.ui
@@ -196,12 +196,12 @@
         </widget>
        </item>
        <item row="4" column="0">
-        <widget class="QCheckBox" name="dedupeCoverBox">
+        <widget class="QCheckBox" name="spreadShiftBox">
          <property name="toolTip">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Don't duplicate the first page as the cover. Useful for 2 page spread alignment.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Shift first page to opposite side in landscape. Useful for 2 page spread alignment.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
          </property>
          <property name="text">
-          <string>De-dupe cover</string>
+          <string>Spread shift</string>
          </property>
         </widget>
        </item>
@@ -241,9 +241,6 @@
          <property name="singleStep">
           <number>5</number>
          </property>
-         <property name="orientation">
-          <enum>Qt::Orientation::Horizontal</enum>
-         </property>
         </widget>
        </item>
       </layout>
@@ -282,9 +279,6 @@
          <property name="singleStep">
           <number>1</number>
          </property>
-         <property name="orientation">
-          <enum>Qt::Orientation::Horizontal</enum>
-         </property>
         </widget>
        </item>
       </layout>
@@ -489,13 +483,13 @@
        <string notr="true">QListWidget#jobList {background:#ffffff;background-image:url(:/Other/icons/list_background.png);background-position:center center;background-repeat:no-repeat;color:rgb(0,0,0);}</string>
       </property>
       <property name="selectionMode">
-       <enum>QAbstractItemView::SelectionMode::NoSelection</enum>
+       <enum>QAbstractItemView::NoSelection</enum>
       </property>
       <property name="verticalScrollMode">
-       <enum>QAbstractItemView::ScrollMode::ScrollPerPixel</enum>
+       <enum>QAbstractItemView::ScrollPerItem</enum>
       </property>
       <property name="horizontalScrollMode">
-       <enum>QAbstractItemView::ScrollMode::ScrollPerPixel</enum>
+       <enum>QAbstractItemView::ScrollPerItem</enum>
       </property>
      </widget>
     </item>
@@ -515,9 +509,6 @@
       <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">
diff --git a/kindlecomicconverter/KCC_gui.py b/kindlecomicconverter/KCC_gui.py
index 4512471..c22611d 100644
--- a/kindlecomicconverter/KCC_gui.py
+++ b/kindlecomicconverter/KCC_gui.py
@@ -256,8 +256,8 @@ class WorkerThread(QtCore.QThread):
             options.noprocessing = True
         if GUI.deleteBox.isChecked():
             options.delete = True
-        if GUI.dedupeCoverBox.isChecked():
-            options.dedupecover = True
+        if GUI.spreadShiftBox.isChecked():
+            options.spreadshift = True
         if GUI.mozJpegBox.checkState() == Qt.CheckState.PartiallyChecked:
             options.forcepng = True
         elif GUI.mozJpegBox.checkState() == Qt.CheckState.Checked:
@@ -794,7 +794,7 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
                                            'widthBox': GUI.widthBox.value(),
                                            'heightBox': GUI.heightBox.value(),
                                            'deleteBox': GUI.deleteBox.checkState().value,
-                                           'dedupeCoverBox': GUI.dedupeCoverBox.checkState().value,
+                                           'spreadShiftBox': GUI.spreadShiftBox.checkState().value,
                                            'maximizeStrips': GUI.maximizeStrips.checkState().value,
                                            'gammaSlider': float(self.gammaValue) * 100})
         self.settings.sync()
diff --git a/kindlecomicconverter/KCC_rc.py b/kindlecomicconverter/KCC_rc.py
index 0c991f4..9a1cfef 100644
--- a/kindlecomicconverter/KCC_rc.py
+++ b/kindlecomicconverter/KCC_rc.py
@@ -11612,51 +11612,51 @@ qt_resource_struct = b"\
 \x00\x00\x00X\x00\x02\x00\x00\x00\x04\x00\x00\x00\x07\
 \x00\x00\x00\x00\x00\x00\x00\x00\
 \x00\x00\x01\xc0\x00\x00\x00\x00\x00\x01\x00\x02.\xed\
-\x00\x00\x01\x93\xaa\xe2\xc3\xd8\
+\x00\x00\x01\x88;p\xbcB\
 \x00\x00\x01\xfe\x00\x00\x00\x00\x00\x01\x00\x02\x83\x87\
-\x00\x00\x01\x93\xaa\xe2\xc3\xd8\
+\x00\x00\x01\x88;p\xbcB\
 \x00\x00\x01\xea\x00\x00\x00\x00\x00\x01\x00\x02Y\x8c\
-\x00\x00\x01\x93\xaa\xe2\xc3\xd8\
+\x00\x00\x01\x88;p\xbcB\
 \x00\x00\x01\xd6\x00\x00\x00\x00\x00\x01\x00\x02N)\
-\x00\x00\x01\x93\xaa\xe2\xc3\xd8\
+\x00\x00\x01\x89\x89D9.\
 \x00\x00\x00X\x00\x02\x00\x00\x00\x04\x00\x00\x00\x0c\
 \x00\x00\x00\x00\x00\x00\x00\x00\
 \x00\x00\x00\xa6\x00\x00\x00\x00\x00\x01\x00\x01(\x97\
-\x00\x00\x01\x93\xaa\xe2\xc3\xd8\
+\x00\x00\x01\x88;p\xbcB\
 \x00\x00\x00\xbc\x00\x00\x00\x00\x00\x01\x00\x011\xef\
-\x00\x00\x01\x93\xb0w\xb5I\
+\x00\x00\x01\x93\xdc\xec\x99\x8b\
 \x00\x00\x00\x8c\x00\x00\x00\x00\x00\x01\x00\x01\x1d\x90\
-\x00\x00\x01\x93\xaa\xe2\xc3\xd8\
+\x00\x00\x01\x88;p\xbcB\
 \x00\x00\x00\xd0\x00\x00\x00\x00\x00\x01\x00\x01:\x05\
-\x00\x00\x01\x93\xaa\xe2\xc3\xd8\
+\x00\x00\x01\x88;p\xbcB\
 \x00\x00\x00X\x00\x02\x00\x00\x00\x03\x00\x00\x00\x11\
 \x00\x00\x00\x00\x00\x00\x00\x00\
 \x00\x00\x02B\x00\x00\x00\x00\x00\x01\x00\x02\xb5\xd3\
-\x00\x00\x01\x93\xaa\xe2\xc3\xf0\
+\x00\x00\x01\x88;p\xbcJ\
 \x00\x00\x02\x14\x00\x00\x00\x00\x00\x01\x00\x02\x9f\xd6\
-\x00\x00\x01\x93\xaa\xe2\xc3\xf0\
+\x00\x00\x01\x88;p\xbcI\
 \x00\x00\x02*\x00\x00\x00\x00\x00\x01\x00\x02\xa93\
-\x00\x00\x01\x93\xaa\xe2\xc3\xf0\
+\x00\x00\x01\x88;p\xbcI\
 \x00\x00\x00X\x00\x02\x00\x00\x00\x07\x00\x00\x00\x15\
 \x00\x00\x00\x00\x00\x00\x00\x00\
 \x00\x00\x01\x1c\x00\x00\x00\x00\x00\x01\x00\x01P\xb1\
-\x00\x00\x01\x93\xaa\xe2\xc3\xf0\
+\x00\x00\x01\x88;p\xbcJ\
 \x00\x00\x012\x00\x00\x00\x00\x00\x01\x00\x01yY\
-\x00\x00\x01\x93\xaa\xe2\xc3\xf0\
+\x00\x00\x01\x88;p\xbcI\
 \x00\x00\x01\x94\x00\x00\x00\x00\x00\x01\x00\x01\xd2-\
-\x00\x00\x01\x93\xaa\xe2\xc3\xf0\
+\x00\x00\x01\x88;p\xbcI\
 \x00\x00\x01z\x00\x00\x00\x00\x00\x01\x00\x01\x8c\xe6\
-\x00\x00\x01\x93\xaa\xe2\xc3\xf0\
+\x00\x00\x01\x88;p\xbcH\
 \x00\x00\x01\x04\x00\x00\x00\x00\x00\x01\x00\x01LR\
-\x00\x00\x01\x93\xaa\xe2\xc3\xe8\
+\x00\x00\x01\x88;p\xbcF\
 \x00\x00\x00\xe8\x00\x00\x00\x00\x00\x01\x00\x01?\xe9\
-\x00\x00\x01\x93\xaa\xe2\xc3\xec\
+\x00\x00\x01\x88;p\xbcH\
 \x00\x00\x01T\x00\x00\x00\x00\x00\x01\x00\x01\x82\xb0\
-\x00\x00\x01\x93\xaa\xe2\xc3\xec\
+\x00\x00\x01\x88;p\xbcH\
 \x00\x00\x00X\x00\x02\x00\x00\x00\x01\x00\x00\x00\x1d\
 \x00\x00\x00\x00\x00\x00\x00\x00\
 \x00\x00\x00h\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\
-\x00\x00\x01\x93\xaa\xe2\xc3\xec\
+\x00\x00\x01\x88;p\xbcH\
 "
 
 def qInitResources():
diff --git a/kindlecomicconverter/KCC_ui.py b/kindlecomicconverter/KCC_ui.py
index 4800d0b..9424569 100644
--- 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 6.6.3
+## Created by: Qt User Interface Compiler version 6.8.1
 ##
 ## WARNING! All changes made in this file will be lost when recompiling UI file!
 ################################################################################
@@ -28,7 +28,7 @@ class Ui_mainWindow(object):
             mainWindow.setObjectName(u"mainWindow")
         mainWindow.resize(481, 400)
         icon = QIcon()
-        icon.addFile(u":/Icon/icons/comic2ebook.png", QSize(), QIcon.Normal, QIcon.Off)
+        icon.addFile(u":/Icon/icons/comic2ebook.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         mainWindow.setWindowIcon(icon)
         self.centralWidget = QWidget(mainWindow)
         self.centralWidget.setObjectName(u"centralWidget")
@@ -116,10 +116,10 @@ class Ui_mainWindow(object):
 
         self.gridLayout_2.addWidget(self.disableProcessingBox, 4, 2, 1, 1)
 
-        self.dedupeCoverBox = QCheckBox(self.optionWidget)
-        self.dedupeCoverBox.setObjectName(u"dedupeCoverBox")
+        self.spreadShiftBox = QCheckBox(self.optionWidget)
+        self.spreadShiftBox.setObjectName(u"spreadShiftBox")
 
-        self.gridLayout_2.addWidget(self.dedupeCoverBox, 4, 0, 1, 1)
+        self.gridLayout_2.addWidget(self.spreadShiftBox, 4, 0, 1, 1)
 
 
         self.gridLayout.addWidget(self.optionWidget, 5, 0, 1, 2)
@@ -139,7 +139,6 @@ class Ui_mainWindow(object):
         self.gammaSlider.setObjectName(u"gammaSlider")
         self.gammaSlider.setMaximum(250)
         self.gammaSlider.setSingleStep(5)
-        self.gammaSlider.setOrientation(Qt.Orientation.Horizontal)
 
         self.horizontalLayout_2.addWidget(self.gammaSlider)
 
@@ -161,7 +160,6 @@ class Ui_mainWindow(object):
         self.croppingPowerSlider.setObjectName(u"croppingPowerSlider")
         self.croppingPowerSlider.setMaximum(300)
         self.croppingPowerSlider.setSingleStep(1)
-        self.croppingPowerSlider.setOrientation(Qt.Orientation.Horizontal)
 
         self.horizontalLayout_3.addWidget(self.croppingPowerSlider)
 
@@ -182,7 +180,7 @@ class Ui_mainWindow(object):
         self.directoryButton.setObjectName(u"directoryButton")
         self.directoryButton.setMinimumSize(QSize(0, 30))
         icon1 = QIcon()
-        icon1.addFile(u":/Other/icons/folder_new.png", QSize(), QIcon.Normal, QIcon.Off)
+        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)
@@ -191,7 +189,7 @@ class Ui_mainWindow(object):
         self.fileButton.setObjectName(u"fileButton")
         self.fileButton.setMinimumSize(QSize(0, 30))
         icon2 = QIcon()
-        icon2.addFile(u":/Other/icons/document_new.png", QSize(), QIcon.Normal, QIcon.Off)
+        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)
@@ -215,7 +213,7 @@ class Ui_mainWindow(object):
         font.setBold(True)
         self.convertButton.setFont(font)
         icon3 = QIcon()
-        icon3.addFile(u":/Other/icons/convert.png", QSize(), QIcon.Normal, QIcon.Off)
+        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)
@@ -224,7 +222,7 @@ class Ui_mainWindow(object):
         self.clearButton.setObjectName(u"clearButton")
         self.clearButton.setMinimumSize(QSize(0, 30))
         icon4 = QIcon()
-        icon4.addFile(u":/Other/icons/clear.png", QSize(), QIcon.Normal, QIcon.Off)
+        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)
@@ -247,7 +245,7 @@ class Ui_mainWindow(object):
         self.editorButton.setObjectName(u"editorButton")
         self.editorButton.setMinimumSize(QSize(0, 30))
         icon5 = QIcon()
-        icon5.addFile(u":/Other/icons/editor.png", QSize(), QIcon.Normal, QIcon.Off)
+        icon5.addFile(u":/Other/icons/editor.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         self.editorButton.setIcon(icon5)
 
         self.horizontalLayout.addWidget(self.editorButton)
@@ -256,7 +254,7 @@ class Ui_mainWindow(object):
         self.wikiButton.setObjectName(u"wikiButton")
         self.wikiButton.setMinimumSize(QSize(0, 30))
         icon6 = QIcon()
-        icon6.addFile(u":/Other/icons/wiki.png", QSize(), QIcon.Normal, QIcon.Off)
+        icon6.addFile(u":/Other/icons/wiki.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         self.wikiButton.setIcon(icon6)
 
         self.horizontalLayout.addWidget(self.wikiButton)
@@ -267,9 +265,9 @@ class Ui_mainWindow(object):
         self.jobList = QListWidget(self.centralWidget)
         self.jobList.setObjectName(u"jobList")
         self.jobList.setStyleSheet(u"QListWidget#jobList {background:#ffffff;background-image:url(:/Other/icons/list_background.png);background-position:center center;background-repeat:no-repeat;color:rgb(0,0,0);}")
-        self.jobList.setSelectionMode(QAbstractItemView.SelectionMode.NoSelection)
-        self.jobList.setVerticalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
-        self.jobList.setHorizontalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
+        self.jobList.setSelectionMode(QAbstractItemView.NoSelection)
+        self.jobList.setVerticalScrollMode(QAbstractItemView.ScrollPerItem)
+        self.jobList.setHorizontalScrollMode(QAbstractItemView.ScrollPerItem)
 
         self.gridLayout.addWidget(self.jobList, 2, 0, 1, 2)
 
@@ -278,7 +276,6 @@ class Ui_mainWindow(object):
         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)
 
@@ -416,9 +413,9 @@ class Ui_mainWindow(object):
 #endif // QT_CONFIG(tooltip)
         self.disableProcessingBox.setText(QCoreApplication.translate("mainWindow", u"Disable processing", None))
 #if QT_CONFIG(tooltip)
-        self.dedupeCoverBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p>Don't duplicate the first page as the cover. Useful for 2 page spread alignment.</p></body></html>", None))
+        self.spreadShiftBox.setToolTip(QCoreApplication.translate("mainWindow", u"<html><head/><body><p>Shift first page to opposite side in landscape. Useful for 2 page spread alignment.</p></body></html>", None))
 #endif // QT_CONFIG(tooltip)
-        self.dedupeCoverBox.setText(QCoreApplication.translate("mainWindow", u"De-dupe cover", None))
+        self.spreadShiftBox.setText(QCoreApplication.translate("mainWindow", u"Spread shift", 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)
diff --git a/kindlecomicconverter/KCC_ui_editor.py b/kindlecomicconverter/KCC_ui_editor.py
index 051b92b..b02f2d9 100644
--- 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 6.6.3
+## Created by: Qt User Interface Compiler version 6.8.1
 ##
 ## WARNING! All changes made in this file will be lost when recompiling UI file!
 ################################################################################
@@ -27,7 +27,7 @@ class Ui_editorDialog(object):
         editorDialog.resize(400, 260)
         editorDialog.setMinimumSize(QSize(400, 260))
         icon = QIcon()
-        icon.addFile(u":/Icon/icons/comic2ebook.png", QSize(), QIcon.Normal, QIcon.Off)
+        icon.addFile(u":/Icon/icons/comic2ebook.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         editorDialog.setWindowIcon(icon)
         self.verticalLayout = QVBoxLayout(editorDialog)
         self.verticalLayout.setObjectName(u"verticalLayout")
@@ -129,7 +129,7 @@ class Ui_editorDialog(object):
         self.okButton.setObjectName(u"okButton")
         self.okButton.setMinimumSize(QSize(0, 30))
         icon1 = QIcon()
-        icon1.addFile(u":/Other/icons/convert.png", QSize(), QIcon.Normal, QIcon.Off)
+        icon1.addFile(u":/Other/icons/convert.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         self.okButton.setIcon(icon1)
 
         self.horizontalLayout.addWidget(self.okButton)
@@ -138,7 +138,7 @@ class Ui_editorDialog(object):
         self.cancelButton.setObjectName(u"cancelButton")
         self.cancelButton.setMinimumSize(QSize(0, 30))
         icon2 = QIcon()
-        icon2.addFile(u":/Other/icons/clear.png", QSize(), QIcon.Normal, QIcon.Off)
+        icon2.addFile(u":/Other/icons/clear.png", QSize(), QIcon.Mode.Normal, QIcon.State.Off)
         self.cancelButton.setIcon(icon2)
 
         self.horizontalLayout.addWidget(self.cancelButton)
diff --git a/kindlecomicconverter/comic2ebook.py b/kindlecomicconverter/comic2ebook.py
index 717ce7a..3a9afcf 100755
--- a/kindlecomicconverter/comic2ebook.py
+++ b/kindlecomicconverter/comic2ebook.py
@@ -358,6 +358,11 @@ def buildOPF(dstdir, title, filelist, cover=None):
     else:
         f.write("</manifest>\n<spine page-progression-direction=\"ltr\" toc=\"ncx\">\n")
         pageside = "left"
+    if options.spreadshift:
+        if pageside == "right":
+            pageside = "left"
+        else:
+            pageside = "right"
     if options.iskindle or options.supportSyntheticSpread:
         for entry in reflist:
             if options.righttoleft:
@@ -521,9 +526,6 @@ 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))
-                if options.dedupecover:
-                    os.remove(os.path.join(dirpath, afile))
-                    continue
             filelist.append(buildHTML(dirpath, afile, os.path.join(dirpath, afile)))
             if not chapter:
                 chapterlist.append((dirpath.replace('Images', 'Text'), filelist[-1][1]))
@@ -544,13 +546,6 @@ def buildEPUB(path, chapternames, tomenumber, ischunked):
 
         for aChapter in options.chapters:
             pageid = aChapter[0]
-
-            if options.dedupecover:
-                if pageid == 0:
-                    continue
-                else:
-                    pageid -= 1
-
             cur_diff = global_diff
             global_diff = 0
 
@@ -1008,8 +1003,8 @@ def makeParser():
     output_options.add_argument("-b", "--batchsplit", type=int, dest="batchsplit", default="0",
                                 help="Split output into multiple files. 0: Don't split 1: Automatic mode "
                                      "2: Consider every subdirectory as separate volume [Default=0]")
-    output_options.add_argument("--dedupecover", action="store_true", dest="dedupecover", default=False,
-                                help="De-duplicate the cover as the first page in the book")
+    output_options.add_argument("--spreadshift", action="store_true", dest="spreadshift", default=False,
+                                help="Shift first page to opposite side in landscape for spread alignment")
 
     processing_options.add_argument("-n", "--noprocessing", action="store_true", dest="noprocessing", default=False,
                                     help="Do not modify image and ignore any profil or processing option")