Quote:
Originally Posted by laji
Purposes:
1. Manually edited the file, but want to keep the previous version(s) (for example: a horrible big file because of good quality images - I wish to preserve it, but use a downsampled version for reading).
2. An audio book's flac/mp3 files wish to store as 1 book.
3. Book in format of many jpg files (easier to list with Irfanview, than as a big PDF from images).
...and so on.
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1) No. calibre is not a version control system, and that request has come up numerous times -- the developer isn't interested. Not every program has to be Google Docs.
Find another program that enables you to store versions of files.
Or use something like OSX Time Machine -- on linux there are a couple GUIs over rsync, you should be able to figure something out with one or another of the various backup programs for Windows.
2) You can zip up the files, and add the ZIP to calibre
3) Likewise -- in fact, there are programs that expect to see a zipped folder of images, and treat this as an ebook. See:
https://en.wikipedia.org/wiki/Comic_book_archive