Thread: How to update book file with edited metadata?
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Old 05-21-2025, 08:28 PM   #5
DNSB
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Quote:
Originally Posted by whiteowl View Post
What is KF8? The `calibre 8.4` does not know how to convert into this format.
KF8 is Amazon's name for the ebook format that calibre calls azw3.

Quote:
Originally Posted by whiteowl View Post
And yes, I know how to directly edit book files. But if I have a GUI - why not use it? And I am guessing there are many people who are not as tech savvy - how do they export book to device if the file's metadata does not match library's metadata?
Hmmm... you could convert the fb2 file to ePub, update the metadata using either the Polish tool or the Modify Epub plugin and then convert back to fb2. Personally, since fb2 is not a very capable format, I would suggest using ePub instead. Even fb3 is not that great. Any format that stores images in Base64 is, IMO, lacking.

And note that for formats where calibre is capable of modifying the metadata, you can select to have that done on Save to disk while, as far as I am aware, it is automatic for Send to device.
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