I have a few AZW3 files that I have already tweaked to my liking, but I want to do some batch tweaks and split some of them. Both seem to be much easier to achieve by having the books in the ePub format, so my plan is to convert the books to ePub using KindleUnpack, apply the tweaks to exploded books and use ePubSplit to cut them up, then reconvert them back to AZW3.
KindleUnpack seems to be able to convert AZW3 to ePub while preserving the formatting, HTML structure, CSS class names, etc. - but is there a plugin that does the reverse? Or a set of Calibre conversion options that won't mess with the book?
KindleUnpack seems to be able to convert AZW3 to ePub while preserving the formatting, HTML structure, CSS class names, etc. - but is there a plugin that does the reverse? Or a set of Calibre conversion options that won't mess with the book?