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Old Today, 03:10 PM   #631
JSWolf
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Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Quote:
Originally Posted by MrSilverstrike View Post
Yes, there are differences.

The Kobo prefixed packages have all of the fonts patched by a script that applies a variety of fixes that improve font rendering on Kobo devices running the stock system software. Since those changes affect certain kerning tables, I don't recommend the Kobo packages for any other use (e.g. on Kindle or on your computer) since I can't guarantee they'll work exactly as intended. But on Kobo devices, they tend to look better.

More details and a full technical breakdown can be found in the README
When I first worked on ChareInk (aka Charis SIL), there was no kerning, I added kerning to it. That's the same kerning that's used on Windows and iOS/iPadOS, and KFX (Kindle). So I don't think there will be any issues with using the Kobo version elsewhere.
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Old Today, 03:43 PM   #632
MrSilverstrike
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Quote:
Originally Posted by xyclonei View Post
Thank you for the collection and the kobo-font-fix script!

Also, would you be open to adding otf2ttf to the run pipeline so OTFs can be converted as well?
I've experimented with otf2ttf but I've had some issues with that; opening the OTF in FontForge and exporting it there tends to work better. That, too, can be automated.

I don't quite specifically recall what the problem was but it was related to some of the metadata embedded in the OTF file that cannot be renamed without resaving the whole font, so at some point I scrapped OTF support.

Anyway, thanks for pointing out there's issues on Windows -- I'll make sure to fix that at some point!
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Old Today, 03:47 PM   #633
MrSilverstrike
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Quote:
Originally Posted by JSWolf View Post
So I don't think there will be any issues with using the Kobo version elsewhere.
I agree. The only issue I can imagine is if programs have issues with both a GPOS and kern table being present as part of the font, which is the case for some of the KF "fixed" fonts.

In practice, I think it's fine, but I'm just playing it safe for the most part with my recommendations... I'm sure there's some program out there that can't handle it
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