Quote:
Originally Posted by JSWolf
In both ePub and KePub, with Rakuten Serif, I searched for ffi and had a look and ligatures do work.
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I also looked at this a bit more and I think you're right. The ligatures in this particular font aren't very distinctive anyway. Perhaps the missing tables aren't essential for ligatures to work.
What is noticeable to me is that kerning for Regular in kepubs is not right. Epubs look OK kern-wise. It looks like the "missing" GPOS kern tables are important to kepubs but not to epubs.
In addition, I think the "missing" tables are already in there somewhere because when I opened the Regular ttf with FontForge and regenerated the ttf without making any deliberate changes the GPOS/GSUB tables miraculously "reappeared" in the regenerated ttf. For someone who understands what they're doing it should be fixable. Whether it *will* be fixed by Kobo remains to be seen.