Quote:
Originally Posted by jackm8
It's me that wondering if you've ever really compared KFX and AZW3.
And why are you even comparing Kobo Touch and Paperwhite? If you're in Kindle ecosystem, you can only compare KFX and AZW3. That's all there is, and the discussion is between these formats. KFX has better typesetting than AZW3, and it has more features than AZW3. It makes sense, as all their support and development stopped on AZW3 when KFX was introduced. AZW3 is a legacy format.
For the use in native amazon reader, I've all my sideloaded books in KFX format and they all work better than if they're in AZW3 format. Drop caps are a niche feature, but hyphens, ligatures and kerning, are absolutely vital, simply because AZW3 doesn't support them at all. Covers work, thumbnails work, text is always the same or better compared to AZW3 on the same files. I really don't see a reason to use AZW3 at all.
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Personally, I preferred AZW3 to KFX when I used Kindles. For several reasons:
- KFX has a fixed line-height that's too large for my taste
- KFX didn't work with the FONT_RAMP hack (custom font sizes), which was essential for me
- I hate hyphenation and disable it on all my ereaders, so AZW3 not supporting it was a plus
- I couldn't care less about ligatures and kerning (yes, I do know what they are)
In short, KFX being superior or inferior is pretty subjective and depends on your preferences. For me it was inferior, YMMV.