Quote:
Originally Posted by Rev. Bob
Merely importing a book into Calibre adds the metadata. As I understand it, that's a prerequisite to being able to use Calibre's TOC Editor on it...
EDIT: As for an example, I just added an EPUB into my Calibre library, did nothing to it, and used Save to Disk to make a copy. It made the following OPF changes that I consider "dirtying it up":
- Removed the BOM from the file, making it an improper UTF-8 file.
- Moved the title below the author, removing the indentation in the process.
- Modified the date/time.
- Removed the (empty) subject field.
- Inserted Calibre-specific metadata: title_sort, user_categories, and author_link_map (also with botched indentation)
- Inserted a contributor credit for itself.
- Inserted a second, Calibre-specific, identifier field.
You may be fine with those changes. I am not. |
Save to disk is what is causing the conversion to happen and that is a USER error in this case. You need to go into Preferences and then Saving to disk. Uncheck all of the options except Show files in file browser after saving to disk. That will prevent the metadata update conversion.
I do so wish Calibre's default options for Saving to disk would be not to do any metadata updating and that in a new version, that the Saving to disk options get changed this way. People can change it back if they want.