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Old 03-06-2026, 07:47 AM   #1756
jhowell
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Originally Posted by njpig View Post
This epub file sent to kindle via https://www.amazon.com/sendtokindle is not converted to kfx format. Anybody has clue on this?
That EPUB contains an interactive article from The Economist. It uses <video> elements that are not supported in Kindle ebooks.
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Old 03-08-2026, 10:37 PM   #1757
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Originally Posted by jhowell View Post
That EPUB contains an interactive article from The Economist. It uses <video> elements that are not supported in Kindle ebooks.
Thanks a lot!

I found HTML and CSS Tags Supported in Kindle Format 8 here:
https://kdp.amazon.com/en_US/help/to...5R7N649LECKP7U

but did not find any information on kfx.
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Old 03-09-2026, 11:42 AM   #1758
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Quote:
Originally Posted by njpig View Post
I found HTML and CSS Tags Supported in Kindle Format 8 here:
https://kdp.amazon.com/en_US/help/to...5R7N649LECKP7U

but did not find any information on kfx.
Amazon's documentation is very minimal. It does not refer directly to KFX format but uses the term "Enhanced Typesetting" instead. This page has a little bit of information:

Attributes and Tags Supported by Enhanced Typesetting
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