Finished an indie fiction novel, Proximity Factor, using Sigil, as a fully enhanced Epub3. It has embedded audio chapter 14, animated GIFs throughout(hand made), and custom TTF and OTF fonts embedded in many chapters, not converted to WOFF2, just native TTF/OTF.
Tested across Apple Books, Kobo, etc. Fonts render correctly and audio plays on every compatible reader. Kindle strips the audio as expected, GIFs go static.
Curious whether others have had consistent TTF/OTF font rendering across readers, or whether converting to WOFF2 would have made a difference. Also happy to share the file if anyone wants to stress-test it on their setup. Proximityfactor@gmail.com
u/Far-Somewhere182 — 15 days ago