Quote:
Originally Posted by ichnilatis
Hi,
I would just like to ask a question. Excuse me if it has already been answered.
When I transfer an EPUB book from calibre to my ebook reader, three files are displayed: the epub file, the cover in jpg format and a .opf file. Are all these files necessary? I usually delete the jpg and opf files and all seem to be ok; there is no problem with the book.
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If you use the Save to Disk feature, which I would recommend in your usage case, you can control what gets saved via the Preferences->Save to Disk settings:
BR