Animated GIF is not a supported format in any digital publishing workflow (except perhaps DPS). It's not supported in EPUB files, sorry.
Thanks for your answer!
If an epub file is checked OK by ePub Validator [EPUB Validator (beta)] using EpubCheck v. 3.0.1 (last version?), does that mean the file is OK?
… and so OK for Apple?
Thanks in advance!
Animated GIFs are supported, at least in iBooks.
One of my favorite EPUBs of 2014 is NYC Basic Tips and Etiquette, a reflowable EPUB with incredible animations, which are all all animated GIFs
[Sorry Steve!] That's what I've seen im my sample: I've inserted an animated GIF in it and validate it. It's OK.
But, as I said, need to be sure that an ePub well checked that looks fine in iBooks, ADE and Readium could be quiet OK for Apple!
Thanks for your confirmation!
Thanks, Anne-Marie. I bow to the Master! I've never seen or heard of that format being used.