IGN:...

src/calibre/customize/conversion.py

@@ -133,6 +133,14 @@ class InputFormatPlugin(Plugin):
     #: (option_name, recommended_value, recommendation_level)
     recommendations = set([])
 
+    def get_images(self):
+        '''
+        Return a list of absolute paths to the images, if this input plugin
+        represents an image collection. The list of images is in the same order
+        as the spine and the TOC.
+        '''
+        raise NotImplementedError()
+
     def convert(self, stream, options, file_ext, log, accelerators):
         '''
         This method must be implemented in sub-classes. It must return

src/calibre/ebooks/comic/input.py

@@ -357,6 +357,9 @@ class ComicInput(InputFormatPlugin):
                 thumbnail = None
         return new_pages
 
+    def get_images(self):
+        return self._images
+
     def convert(self, stream, opts, file_ext, log, accelerators,
             progress=lambda p, m : m):
         from calibre.ebooks.metadata import MetaInformation
@@ -401,6 +404,9 @@ class ComicInput(InputFormatPlugin):
         spine = []
         for comic in comics:
             spine.extend(map(href, comic[2]))
+        self._images = []
+        for comic in comics:
+            self._images.extend(comic[1])
         opf.create_spine(spine)
         toc = TOC()
         if len(comics) == 1:

src/calibre/ebooks/pdf/output.py

@@ -60,6 +60,9 @@ class PDFOutput(OutputFormatPlugin):
                  ])
 
     def convert(self, oeb_book, output_path, input_plugin, opts, log):
+        self.opts, self.log = opts, log
+        if input_plugin.is_image_collection:
+            self.convert_images(input_plugin.get_images())
         with TemporaryDirectory('_pdf_out') as oebdir:
             OEBOutput(None).convert(oeb_book, oebdir, input_plugin, opts, log)
 

src/calibre/ebooks/pdf/writer.py

@@ -9,10 +9,9 @@ __docformat__ = 'restructuredtext en'
 Write content to PDF.
 '''
 
-import os, shutil, sys
+import os, shutil
 
 from calibre.ptempfile import PersistentTemporaryDirectory
-from calibre.customize.profiles import OutputProfile
 from calibre.ebooks.pdf.pageoptions import unit, paper_size, \
     orientation, size
 from calibre.ebooks.metadata import authors_to_string