Quote:
Originally Posted by acabal
Are you certain? I just ran a test on a Kindle Voyage with 5.6.5: an epub file without soft hyphens converted to azw3 with Calibre does not hyphenate at all.
Adding soft hyphens to the same file with this script and converting with Calibre to the same format makes Kindle hyphenate.
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You can make AZW3 files render with hyphenation by adding soft hyphens, but this isn't how Amazon does it. Enhanced typesetting uses the KFX file format, not AZW3. It uses a different rendering engine that performs hyphenation (and adds kerning and ligatures) without needing soft hyphens.
Quote:
Originally Posted by acabal
Curious to see the discussion on this--is there a thread you can point me to?
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This thread has information learned about KFX and enhanced typesetting since last summer.
ETA: I have also written
a calibre plugin that can create KFX files in conjunction with Amazon's Kindle Previewer software.