[Conversion Output] KFX Output

[jhowell]

Originally Posted by njpig

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.

[njpig]

Originally Posted by jhowell

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.

[jhowell]

Originally Posted by njpig

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

[texasnightowl]

I've moved this over to: https://www.mobileread.com/forums/sh...d.php?t=372579 since it's not only kfx related.

[JSWolf]

Have you tried calibre 9 and then see what happens? 7.26 is rather old and if you can run calibre 7.26, you should be able to run calibre 9.

[texasnightowl]

I have not...yet. I get tired of updating all the time. Once I have something setup and working, I usually coast with it. I've converted something like 10 other books so far today and only the 1 book has had any issues.

edit...I did just look at dates, and yeah, technically 7.26 is from Feb. 2025. Which means we went from 7.26 through ALL of 8 (17 releases) and now 6 releases of 9.x in 13 months. So yeah...when it's working, I tend to leave it alone.

[JSWolf]

Originally Posted by texasnightowl

I have not...yet. I get tired of updating all the time. Once I have something setup and working, I usually coast with it. I've converted something like 10 other books so far today and only the 1 book has had any issues.

edit...I did just look at dates, and yeah, technically 7.26 is from Feb. 2025. Which means we went from 7.26 through ALL of 8 (17 releases) and now 6 releases of 9.x in 13 months. So yeah...when it's working, I tend to leave it alone.

The way I look at it, when reporting an issue, I think it's a good idea to do so using the latest version of calibre you are able to run. Sometimes the issue could have been fixed or something changed.

[texasnightowl]

I've moved this over to: https://www.mobileread.com/forums/sh...d.php?t=372579 since it's not only kfx related.

[texasnightowl]

I've moved this over to: https://www.mobileread.com/forums/sh...d.php?t=372579 since it's not only kfx related.

[texasnightowl]

I've moved this over to: https://www.mobileread.com/forums/sh...d.php?t=372579 since it's not only kfx related.

[jhowell]

Originally Posted by texasnightowl

I've moved this over to: https://www.mobileread.com/forums/sh...d.php?t=372579 since it's not only kfx related.

Sorry for not responding sooner. I have been traveling and will look into the issue when I return home.

[texasnightowl]

Originally Posted by jhowell

Sorry for not responding sooner. I have been traveling and will look into the issue when I return home.

No apology necessary! I only posted about it this afternoon! Obviously I've figured out the problem isn't only kfx output related, but for sure if you have any suggestions I'm all ears!