Quote:
Originally Posted by nosnoop
When you do a epub to epub conversion, it saves the original one as ORIGINAL_EPUB. So if you need to convert again, I believe it would use the ORIGINAL_EPUB (without all the @font-face in each html files) instead of the modified ones. If that's the case, wouldn't it solve your concern about the difficulty in removing them?
Manual addition is OK for a few files, but if you have hundreds of files to convert.....
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Yes, I do have the ORIGINAL_EPUB option switched on, so no disasters can occur. The aversion to epub-to-epub is deeply ingrained from early disasters before this feature was available
It's a personal preference to try and keep retail epubs as close to the original as possible, but with a few minor tweaks for margins, para-spacing without restructuring the whole epub. It's not necessarily logical

although I do try to keep the Calibre library version in a state where it can be transferred to any of my readers. The T1 @font-faces are not suitable for the earlier Sony models or the Pocketbook. For my purposes it's better to add the T1 @font-faces to the epub once it's already on the T1 so I have to manually explode the epub rather than using Calibre Tweak epub.
I never do bulk conversions, too much of a control freak, I'm afraid. I only tweak them just before I read them, it saves re-tweaking when I get a new reader or learn a new trick.