diff --git a/README.md b/README.md
index d6b7c0e..fd88bc9 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,7 @@ Usage: comic2ebook.py [options] comic_file|comic_folder
 Options:
   MAIN:
     -p PROFILE, --profile=PROFILE
-                        Device profile (Choose one among K1, K2, K345, KDX, KDXG, KHD, KF, KFHD, KFHD8, KFHDX, KFHDX8, KFA) [Default=KHD]
+                        Device profile (Choose one among K1, K2, K345, KDX, KHD, KF, KFHD, KFHD8, KFHDX, KFHDX8, KFA) [Default=KHD]
     -q QUALITY, --quality=QUALITY
                         Quality of Panel View. 0 - Normal 1 - High 2 - Ultra [Default=0]
     -m, --manga-style   Manga style (Right-to-left reading and splitting)
diff --git a/kcc/KCC_gui.py b/kcc/KCC_gui.py
index 9ff6bf6..ece60ba 100644
--- a/kcc/KCC_gui.py
+++ b/kcc/KCC_gui.py
@@ -255,7 +255,7 @@ class WorkerThread(QtCore.QThread):
                             mobiPath = item.replace('.epub', '.mobi')
                             shutil.move(mobiPath, mobiPath + '_toclean')
                             try:
-                                if profile in ['K345', 'KHD', 'KF', 'KFHD', 'KFHD8', 'KFHDX', 'KFHDX8', 'KFA']:
+                                if profile in ['K345', 'KHD', 'KF', 'KFHD', 'KFHD8', 'KFHDX8', 'KFA']:
                                     newKindle = True
                                 else:
                                     newKindle = False
@@ -534,7 +534,7 @@ class Ui_KCC(object):
             GUI.BasicModeButton.setEnabled(True)
             GUI.AdvModeButton.setEnabled(True)
             self.modeBasic()
-        if value in [9, 11, 12, 13, 14]:
+        if value in [9, 11, 12, 13]:
             GUI.QualityBox.setChecked(False)
             GUI.QualityBox.setEnabled(False)
             self.QualityBoxDisabled = True
diff --git a/kcc/comic2ebook.py b/kcc/comic2ebook.py
index e87c13f..88d9fb3 100755
--- a/kcc/comic2ebook.py
+++ b/kcc/comic2ebook.py
@@ -800,7 +800,7 @@ def main(argv=None, qtGUI=None):
     customProfileOptions = OptionGroup(parser, "CUSTOM PROFILE")
     otherOptions = OptionGroup(parser, "OTHER")
     mainOptions.add_option("-p", "--profile", action="store", dest="profile", default="KHD",
-                           help="Device profile (Choose one among K1, K2, K345, KDX, KDXG, KHD, KF, KFHD, KFHD8, KFHDX,"
+                           help="Device profile (Choose one among K1, K2, K345, KDX, KHD, KF, KFHD, KFHD8, KFHDX,"
                                 " KFHDX8, KFA) [Default=KHD]")
     mainOptions.add_option("-q", "--quality", type="int", dest="quality", default="0",
                            help="Quality of Panel View. 0 - Normal 1 - High 2 - Ultra [Default=0]")
@@ -945,7 +945,7 @@ def checkOptions():
     else:
         options.forcecolor = False
     # Older Kindle don't need higher resolution files due lack of Panel View.
-    if options.profile == 'K1' or options.profile == 'K2' or options.profile == 'KDX' or options.profile == 'KDXG':
+    if options.profile == 'K1' or options.profile == 'K2' or options.profile == 'KDX':
         options.quality = 0
         options.panelview = False
     # Webtoon mode mandatory options
diff --git a/kcc/image.py b/kcc/image.py
index 8388802..1e56221 100755
--- a/kcc/image.py
+++ b/kcc/image.py
@@ -85,8 +85,7 @@ class ProfileData:
         'K2': ("Kindle 2", (600, 670), Palette15, 1.8, (900, 1005)),
         'K345': ("Kindle", (600, 800), Palette16, 1.8, (900, 1200)),
         'KHD': ("Kindle Paperwhite", (758, 1024), Palette16, 1.8, (1137, 1536)),
-        'KDX': ("Kindle DX", (824, 1000), Palette15, 1.8, (1236, 1500)),
-        'KDXG': ("Kindle DXG", (824, 1000), Palette16, 1.8, (1236, 1500)),
+        'KDX': ("Kindle DX/DXG", (824, 1000), Palette16, 1.8, (1236, 1500)),
         'KF': ("Kindle Fire", (600, 1024), PalleteNull, 1.0, (900, 1536)),
         'KFHD': ("K. Fire HD 7\"", (800, 1280), PalleteNull, 1.0, (1200, 1920)),
         'KFHD8': ("K. Fire HD 8.9\"", (1200, 1920), PalleteNull, 1.0, (1800, 2880)),
@@ -101,8 +100,7 @@ class ProfileData:
         "Kindle 2": 'K2',
         "Kindle": 'K345',
         "Kindle Paperwhite": 'KHD',
-        "Kindle DX": 'KDX',
-        "Kindle DXG": 'KDXG',
+        "Kindle DX/DXG": 'KDX',
         "Kindle Fire": 'KF',
         "K. Fire HD 7\"": 'KFHD',
         "K. Fire HD 8.9\"": 'KFHD8',
@@ -126,8 +124,7 @@ class ProfileData:
         "Separator",
         "Kindle 1",
         "Kindle 2",
-        "Kindle DX",
-        "Kindle DXG",
+        "Kindle DX/DXG",
         "Kindle Fire"
     ]
 
@@ -168,8 +165,8 @@ class ComicPage:
     def saveToDir(self, targetdir, forcepng, color, wipe):
         try:
             suffix = ""
-            if not color:
-                self.image = self.image.convert('L')    # convert to grayscale
+            if not color and not forcepng:
+                self.image = self.image.convert('L')
             if self.rotated:
                 suffix += "_kccrot"
             if wipe:
@@ -200,13 +197,13 @@ class ComicPage:
             self.image = ImageOps.autocontrast(Image.eval(self.image, lambda a: 255 * (a / 255.) ** gamma))
 
     def quantizeImage(self):
-        self.image = self.image.convert('L')    # convert to grayscale
-        self.image = self.image.convert("RGB")    # convert back to RGB
         colors = len(self.palette) / 3
         if colors < 256:
             self.palette += self.palette[:3] * (256 - colors)
         palImg = Image.new('P', (1, 1))
         palImg.putpalette(self.palette)
+        self.image = self.image.convert('L')
+        self.image = self.image.convert('RGB')
         self.image = self.image.quantize(palette=palImg)
 
     def resizeImage(self, upscale=False, stretch=False, bordersColor=None, qualityMode=0):