Thread: Can I integrate covers into azw3 files?
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Old 01-14-2020, 08:34 AM   #7
jhowell
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Join Date: Nov 2011
Location: Charlottesville, VA
Device: Kindles
Quote:
Originally Posted by xversion1 View Post
But if I send azw3 files via Calibre "Sent to device" then the covers show up. What makes the difference?
Calibre creates and loads a separate cover thumbnail file. The Kindle will use this thumbnail for sideloaded KF8/AZW3 format files marked internally as a book (cdetype=EBOK).

MOBI7 files do not have this problem because the Kindle firmware is able to extract a cover thumbnail from them. Kindle does not support this capability for AZW3 files.
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