Ok, then. Understood about conversion. Thanks for this information. I'll delve into "polish books." (I haven't been able to get the edit-book feature to work, but fortunately there's Sigil for that.)
And at the very least, even if the cover isn't saved without conversion, certain metadata changes are passed along following save-to-disk (without conversion): tags ("Subject" per Sigil's metadata editor), publisher, description (dc:description).
|