Quote:
Originally Posted by Mandabar
I don't know if this applies or not to the above cover situation but I have something to add. If I edit the cover of a FFF book thru any of several methods (custom image, larger higher quality image or generated cover) it will default back to the original UNLESS I manually edit the book (using the Calibre edit functions built in Sigil-like editor) and then change something before saving it. Then the cover will remain as I manually set it on FFF updates.
Edit: Feels like it basically does the same as injection/polish methods described
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Calibre's Edit book feature has a checkbox in its Preferences under 'Integration with Calibre' for 'Update metadata embedded in the bookk when opening' which is checked by default. Which includes cover.
So, by default, when you open Edit book, Calibre
does inject its cover into the epub. But, as you saw, you have to save from Edit book to keep it in the epub.
Calibre's Polish book 'Update the cover' option will also inject the Calibre cover and allows for multiple books at once, FYI.