[Jellby]

Originally Posted by DaleDe

GIF is supported by ePub. The 256 color palette is generally plenty. See http://www.idpf.org/epub/20/spec/OPS...m#Section2.3.4

I stand corrected. I seemed to remember it was only PNG or JPG... maybe I mixed it with Mobi, which is only GIF or JPG.

Anyway, there's no reason to use GIF, as you can also create a PNG with a 256 colour (or fewer) palette, and it will almost always be smaller than the equivalent GIF.