[BetterRed]

Originally Posted by mmjess

This tool [Sigil] is very interesting BR, this is the kind of tool I'm looking for!

Is there a way to apply this operation to multiple ePubs at once?

No

Originally Posted by mmjess

I also noticed that Sigil recreates useless metadata once the changes made and the eBook saved, is there a way to avoid this?

No - it always injects its calling card - name and date, calibre editor does much the same. I suspect its an IDPF best practice guideline. You could try unpacking the epub, remove the calling card from the opf with an editor, and then re-packing the epub. None of the epub readers I use, or have used, display the calling cards, so I've never bothered getting rid of the one Sigil creates when it saves .

Originally Posted by mmjess

I use the Comments section for brief observations on some books and the Description section after completing each book to make a brief summary of the concepts that belong to it.

- calibre puts content of Comments into dc:description, i.e. they are one and the same.

I don't use Comments, firstly because they cannot be edited from the book list, secondly because they end up in dc:description, which cannot be removed by the Modify plugin. Any Comments that I download and want to keep get moved into a custom column - Blurb/#blurb, which I can edit from the book list, and remove via the Modify plugin.

Here the settings I have for the Modify plugin.



This program might be of interest ==>> New program: EPub Metadata Editor. I've never used it myself. I did look at it a long time ago but I decided I didn't need it because I could achieve what I wanted with calibre's Modify plugin and Sigil.

Note : I do other things in Sigil in addition to removing metadata items, such as spell check and ToC adjustments.

BR