diff --git a/src/calibre/ebooks/comic/input.py b/src/calibre/ebooks/comic/input.py
index 04d097ac67..c9b11e31f2 100755
--- a/src/calibre/ebooks/comic/input.py
+++ b/src/calibre/ebooks/comic/input.py
@@ -53,7 +53,7 @@ def find_pages(dir, sort_on_mtime=False, verbose=False):
         prints('\t'+'\n\t'.join([os.path.basename(p) for p in pages]))
     return pages
 
-class PageProcessor(list):
+class PageProcessor(list): # {{{
     '''
     Contains the actual image rendering logic. See :method:`render` and
     :method:`process_pages`.
@@ -111,6 +111,13 @@ class PageProcessor(list):
 
             SCRWIDTH, SCRHEIGHT = self.opts.output_profile.comic_screen_size
 
+            try:
+                if self.opts.comic_image_size:
+                    SCRWIDTH, SCRHEIGHT = map(int, [x.strip() for x in
+                        self.opts.comic_image_size.split('x')])
+            except:
+                pass # Ignore
+
             if self.opts.keep_aspect_ratio:
                 # Preserve the aspect ratio by adding border
                 aspect = float(sizex) / float(sizey)
@@ -170,6 +177,7 @@ class PageProcessor(list):
                 dest = dest[:-1]
                 os.rename(dest+'8', dest)
             self.append(dest)
+# }}}
 
 def render_pages(tasks, dest, opts, notification=lambda x, y: x):
     '''
@@ -291,7 +299,11 @@ class ComicInput(InputFormatPlugin):
         OptionRecommendation(name='no_process', recommended_value=False,
               help=_("Apply no processing to the image")),
         OptionRecommendation(name='dont_grayscale', recommended_value=False,
-            help=_('Do not convert the image to grayscale (black and white)'))
+            help=_('Do not convert the image to grayscale (black and white)')),
+        OptionRecommendation(name='comic_image_size', recommended_value=None,
+            help=_('Specify the image size as widthxheight pixels. Normally,'
+                ' an image size is automatically calculated from the output '
+                'profile, this option overrides it.')),
         ])
 
     recommendations = set([
diff --git a/src/calibre/gui2/convert/comic_input.py b/src/calibre/gui2/convert/comic_input.py
index fe86f133d1..f7f8023c0e 100644
--- a/src/calibre/gui2/convert/comic_input.py
+++ b/src/calibre/gui2/convert/comic_input.py
@@ -22,7 +22,7 @@ class PluginWidget(Widget, Ui_Form):
                 ['colors', 'dont_normalize', 'keep_aspect_ratio', 'right2left',
                     'despeckle', 'no_sort', 'no_process', 'landscape',
                     'dont_sharpen', 'disable_trim', 'wide', 'output_format',
-                    'dont_grayscale']
+                    'dont_grayscale', 'comic_image_size']
                 )
         self.db, self.book_id = db, book_id
         for x in get_option('output_format').option.choices:
diff --git a/src/calibre/gui2/convert/comic_input.ui b/src/calibre/gui2/convert/comic_input.ui
index c3b363d7e9..52c0ad2bb5 100644
--- a/src/calibre/gui2/convert/comic_input.ui
+++ b/src/calibre/gui2/convert/comic_input.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>599</width>
-    <height>345</height>
+    <height>398</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -37,70 +37,70 @@
      </property>
     </widget>
    </item>
-   <item row="3" column="0">
+   <item row="4" column="0">
     <widget class="QCheckBox" name="opt_dont_normalize">
      <property name="text">
       <string>Disable &amp;normalize</string>
      </property>
     </widget>
    </item>
-   <item row="4" column="0">
+   <item row="5" column="0">
     <widget class="QCheckBox" name="opt_keep_aspect_ratio">
      <property name="text">
       <string>Keep &amp;aspect ratio</string>
      </property>
     </widget>
    </item>
-   <item row="5" column="0">
+   <item row="6" column="0">
     <widget class="QCheckBox" name="opt_dont_sharpen">
      <property name="text">
       <string>Disable &amp;Sharpening</string>
      </property>
     </widget>
    </item>
-   <item row="6" column="0">
+   <item row="7" column="0">
     <widget class="QCheckBox" name="opt_disable_trim">
      <property name="text">
       <string>Disable &amp;Trimming</string>
      </property>
     </widget>
    </item>
-   <item row="7" column="0">
+   <item row="8" column="0">
     <widget class="QCheckBox" name="opt_wide">
      <property name="text">
       <string>&amp;Wide</string>
      </property>
     </widget>
    </item>
-   <item row="8" column="0">
+   <item row="9" column="0">
     <widget class="QCheckBox" name="opt_landscape">
      <property name="text">
       <string>&amp;Landscape</string>
      </property>
     </widget>
    </item>
-   <item row="9" column="0">
+   <item row="10" column="0">
     <widget class="QCheckBox" name="opt_right2left">
      <property name="text">
       <string>&amp;Right to left</string>
      </property>
     </widget>
    </item>
-   <item row="10" column="0">
+   <item row="11" column="0">
     <widget class="QCheckBox" name="opt_no_sort">
      <property name="text">
       <string>Don't so&amp;rt</string>
      </property>
     </widget>
    </item>
-   <item row="11" column="0">
+   <item row="12" column="0">
     <widget class="QCheckBox" name="opt_despeckle">
      <property name="text">
       <string>De&amp;speckle</string>
      </property>
     </widget>
    </item>
-   <item row="13" column="0">
+   <item row="14" column="0">
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
@@ -120,7 +120,7 @@
      </property>
     </widget>
    </item>
-   <item row="12" column="0">
+   <item row="13" column="0">
     <widget class="QLabel" name="label">
      <property name="text">
       <string>&amp;Output format:</string>
@@ -130,7 +130,7 @@
      </property>
     </widget>
    </item>
-   <item row="12" column="1">
+   <item row="13" column="1">
     <widget class="QComboBox" name="opt_output_format"/>
    </item>
    <item row="1" column="0">
@@ -140,6 +140,19 @@
      </property>
     </widget>
    </item>
+   <item row="3" column="0">
+    <widget class="QLabel" name="label_2">
+     <property name="text">
+      <string>Override image  &amp;size:</string>
+     </property>
+     <property name="buddy">
+      <cstring>opt_comic_image_size</cstring>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <widget class="QLineEdit" name="opt_comic_image_size"/>
+   </item>
   </layout>
  </widget>
  <resources/>