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jist · 11-09-2020, 11:55 AM

I did a web- and a forum- search on this, but couldn't find much information on it:

Where is metadata for epubs stored?
On the f.a.q. page I read "Metadata about the books is stored in the file metadata.db"

But each book also is accompanied by an opf file, which also contains what I guess you could call metadata.

And the epub format is also capable of containing metadata. (correct me if I am wrong)

So it looks like there are three locations that can hold metadata about the books.
Is there information or an overview to be found somewhere that explains what is—or can be—stored in the epub file itself (which you won't loose when copying the ebook somewhere), and what is stored in Calibre's metadata.db and the accompanying opf file?

11-09-2020, 11:55 AM	#1
jist Enthusiast Posts: 40 Karma: 10 Join Date: May 2018 Device: Onyx Note Lite - Win10	Where is metadata for epubs stored? I did a web- and a forum- search on this, but couldn't find much information on it: Where is metadata for epubs stored? On the f.a.q. page I read "Metadata about the books is stored in the file metadata.db" But each book also is accompanied by an opf file, which also contains what I guess you could call metadata. And the epub format is also capable of containing metadata. (correct me if I am wrong) So it looks like there are three locations that can hold metadata about the books. Is there information or an overview to be found somewhere that explains what is—or can be—stored in the epub file itself (which you won't loose when copying the ebook somewhere), and what is stored in Calibre's metadata.db and the accompanying opf file?