Split EPUB/MOBI File with Multiple Books

[jwh88]

I'm not sure if this is a Calibre or EPUB question, but I started with an EPUB file with 16 books in it. I successfully converted it to MOBI format for my Kindle. But both the EPUB and MOBI formats look like just a giant "book" containing the 16 books. Is there any way I can split either the EPUB or MOBI file into the individual books?

Thanks, Jaime

[speakingtohe]

You can edit epub with sigil. See Mobileread Sigil forum.
You can convert to txt or rtf and split them and convert back.

Helen

[kiwidude]

Without multi-select in Sigil (which meme tells me is coming for the next release, much kudos for adding that!) splitting an omnibus in Sigil is way too painful.

What I do at the moment is open the epub in Sigil, so I can see which files belong to which sub-book. Then I create a book record for each sub-book in calibre, and copy the omnibus epub to each. If you want some "common" adjustments like to styles, do it to the omnibus before this step.

Then I use Tweak ePub for each book, deleting the files I don't want in that particular sub-book, and manually editing the .opf file in the two relevant places to remove references to them. Then just repeat this step for each sub-book.

Once multi-select is in Sigil that last step will be *much* simpler because you can do it in Sigil instead of Tweak ePub. For each copy of the omnibus you will just multi-select all but the files you want to keep in the book browser pane, a single right-click and job done, Sigil will rebuild the opf for you.

[jwh88]

Thanks for pointing me to Sigil and Twek ePub. I guess I know what I be doing this weekend!