Thread: Way to Embed/Save Metadata and Cover to EMPTY EPub (for cataloging physical books)?
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Old Today, 08:11 AM   #13
BetterRed
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Quote:
Originally Posted by readabit View Post
I think they were mentioning this because my stated goal was that wanted the EPUB to be changed, so they were clarifying the conditions in which using Polish would not result in a changed file.
No - if the Update metadata in the book files is checked Polish books will update the metadata section of the opf file within EPUB… which I assume is what BookFusion uses.

@chaley is right, in your particular use case because the EPUB has no substantive content there is no style sheet to calibre-ise in an EPUB→EPUB conversion. But I would argue that the baseline Polish books feature has the advantage of being a scalpel whereas a conversion is a chain-saw.

N.B. The metadata.opf files in the book files are updated whenever metadata is changed, their only purpose is to enable restoration of a corrupted library database.

BR
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