"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."