How to tweak azw3 files to trigger the enhanced typesetting feature?

[cacophonix]

Hello,

First of all, please excuse my weak English.

I am a big fan of the "enhanced typesetting" feature on Kindle.

Since this feature seems automatically enabled for KFX files, I follow with great interest the progress on KFX file generation with the Calibre plugin discussed in this thread: https://www.mobileread.com/forums/sho...d.php?t=272407.
Sadly, at this time, the generated files do not show book cover on the Kindle device.

On the other hand, when manually downloading books having enhanced typesetting enabled from my Amazon account, I get an azw3 file (KF8 format if I have correctly understood) which can be imported in Calibre (with DRM removal plugin) and then transferred on my Kindle device. These files have the same typography features as the KFX I get by downloading directly the book on my Kindle via WiFi.

I came to the conclusion that enhanced typesetting can be enabled in AZW3 files. Am I wrong?

So my question is basically: do someone know how to enable this settings in a AZW3 file? I could not find such information on the forum...
Perhaps things are much more complex... Please enlight me!
Thanks in advance!

[NiLuJe]

You might have better luck in the Kindle Formats forum?

[cacophonix]

Sorry! You're right! Should I ask a moderator to move this thread to the appropriate forum or delete it?

[JSWolf]

There is a plugin for Calibre that will convert to KFX so you can get enhanced typesetting on your Kindle. The problem is that it's hit or miss because it uses a beta of Kindle Previewer to do some of the heavy lifting and that don't work for this all that reliably. https://www.mobileread.com/forums/sho...d.php?t=272407


If you really want enhanced typesetting all the time, you'll want a Reader that uses RMDSK (ADE) because that doesn't need any specialized format to do the typesetting.

[darryl]

Originally Posted by cacophonix

I came to the conclusion that enhanced typesetting can be enabled in AZW3 files. Am I wrong?

To answer your actual question? You are wrong. kf8's do not support enhanced typesetting. Amazon chose the approach of implementing it in a new format, kfx. So if you want enhanced typesetting you need the kfx, which you can of course have Amazon deliver to your supported device. Your options from a kf8 file? Try to convert to kfx as discussed above. Or try a calibre plugin to hyphenate. There is at least one, Hyphenate This. I haven't tried it personally so can't advise how well it works or how the final result compares.

[eschwartz]

Originally Posted by cacophonix

Sorry! You're right! Should I ask a moderator to move this thread to the appropriate forum or delete it?

Done, moved.

[cacophonix]

Originally Posted by JSWolf

There is a plugin for Calibre that will convert to KFX so you can get enhanced typesetting on your Kindle. The problem is that it's hit or miss because it uses a beta of Kindle Previewer to do some of the heavy lifting and that don't work for this all that reliably. https://www.mobileread.com/forums/sho...d.php?t=272407

Thanks JSWolf, as was aware of this plugin and linked the same post in my original message.

[JSWolf]

If you don't mind not having kerning and/or ligatures, you can use the Hyphenate This! plugin and add in hyphens. It does work very well with KF8.

[cacophonix]

Originally Posted by darryl

To answer your actual question? You are wrong. kf8's do not support enhanced typesetting. Amazon chose the approach of implementing it in a new format, kfx. So if you want enhanced typesetting you need the kfx, which you can of course have Amazon deliver to your supported device. Your options from a kf8 file? Try to convert to kfx as discussed above. Or try a calibre plugin to hyphenate. There is at least one, Hyphenate This. I haven't tried it personally so can't advise how well it works or how the final result compares.

Thanks for your answer darryl! The KFX plugin proved to be useful. I didn't try the Hyphenate, but will certainly do and report here.