v3.22.1 Upgrade to epub3

phossler · 04-20-2018, 10:02 AM

Quote:

Upgrading the book’s internals

This tool can be used to upgrade the book’s internals, if possible. For instance it will upgrade EPUB 2 books to EPUB 3 books. The tool can be accessed via Upgrade book internals.

Just curious but when would I need to do this?

Most of the time, I need to take epub3 tags, etc. out of a book to make it a little 'cleaner' so I can reformat for easier reading on my Kindle

kovidgoyal · 04-20-2018, 11:44 AM

If you dont know when you need it, you dont need it

It's mostly for people that need it for some silly epubcheck related reason. Apart from epubcheck compatibility you can do pretty much anything in EPUB 2 that you can do in EPUB 3 since both are ultimately rendered by browser HTML engines anyway.

phossler · 04-20-2018, 03:23 PM

That's sort of what I expected. I was wondering if you planned to move the editor to epub3, although I don't know why you would need to.

I works just fine the way it is

kovidgoyal · 04-20-2018, 08:15 PM

THe editor is never going to be tied to any specific EPUB version. For that matter it is not even tied to EPUB at all, it edits AZW3 as well.

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04-20-2018, 11:44 AM	#2
kovidgoyal creator of calibre Posts: 43,859 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If you dont know when you need it, you dont need it It's mostly for people that need it for some silly epubcheck related reason. Apart from epubcheck compatibility you can do pretty much anything in EPUB 2 that you can do in EPUB 3 since both are ultimately rendered by browser HTML engines anyway.

04-20-2018, 03:23 PM	#3
phossler Wizard Posts: 1,071 Karma: 412718 Join Date: Jan 2009 Location: Valley Forge, PA, USA Device: Kindle Paperwhite	That's sort of what I expected. I was wondering if you planned to move the editor to epub3, although I don't know why you would need to. I works just fine the way it is

04-20-2018, 08:15 PM	#4
kovidgoyal creator of calibre Posts: 43,859 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	THe editor is never going to be tied to any specific EPUB version. For that matter it is not even tied to EPUB at all, it edits AZW3 as well.