[Conversion Output] KFX Output

[tomsem]

Originally Posted by DoctorOhh

It is my understanding that if the book is labeled as a document, Amazon won't evaluate it against your library and possibly remove it, which happens sometimes with sideloaded books.

Also cover thumbnails will be generated for side-loaded personal documents. On the 2024 Kindles, calibre can no longer do that for you as there is no access to where these are stored.

But automatic cover generation also happens on older Kindles for personal documents.

[readerlove]

Originally Posted by jhowell

Version 2.13.0 - 29 Nov 2024

Detect Kindle Previewer versions up to 3.89.0.

By default the KFX metadata writer will no longer update the ASIN, CDEType, and Language fields of KFX books when they are exported from calibre since doing so can cause problems once the KFX file is sideloaded to a Kindle. Add plugin configuration option "Enable updating of all KFX metadata" that when checked will reenable the updating of those fields.

Use language code zh-hant in place of zh-TW when converting to KFX in order to enable Traditional Chinese language support on Kindles.

Dear Jhowell
I met a problem that my another plugs can't work well with the new KFX output version, I find this thread and look every pages, but I can't find the old version download address. Could you please send the old version 2.13.0 to me.
Thanks

[JBaby]

Originally Posted by jhowell

Version 2.15.0 - 11 Apr 2025

The default conversion behavior has been changed to create a personal document (PDOC) instead of a book (EBOK). Replace the "Create personal document instead of book" conversion option with "Create book (EBOK) instead of personal document (PDOC)". The CLI option "--book" has been added. The "kfx_output_ignore_asin_metadata" plugin tweak has been eliminated.

Detect Kindle Previewer versions up to 3.92.0.

Just so I’m clear in order to get my books to be EBOK in need to run this via command line for every single book now?

[jhowell]

Originally Posted by JBaby

Just so I’m clear in order to get my books to be EBOK in need to run this via command line for every single book now?

No, if you convert using the calibre UI the option to produce an EBOK is available in the KFX Output tab of the conversion configuration dialog. You can also change the default for future conversions in Preferences, Conversion, Output options, KFX Output.

[jhowell]

Originally Posted by readerlove

Could you please send the old version 2.13.0 to me.

I have attached the older plugin version 2.13.0 to this post, available for a limited time.

You are on your own if you encounter problems with it. I do not provide support for older plugin versions.

[JBaby]

Originally Posted by jhowell

No, if you convert using the calibre UI the option to produce an EBOK is available in the KFX Output tab of the conversion configuration dialog. You can also change the default for future conversions in Preferences, Conversion, Output options, KFX Output.

Awesome! Thank you very much!

[readerlove]

Originally Posted by jhowell

I have attached the older plugin version 2.13.0 to this post, available for a limited time.

You are on your own if you encounter problems with it. I do not provide support for older plugin versions.

Thanks Very Much.

[Elaine T]

Yesterday i was converting fics to put on my 2022 paperwhite, and some of them stalled - for several hours, stalled at 67% done. This morning I tried one of them again, and it happened again. I've grabbed the job details as well as put Calibre in debug mode. Here's the job details:

p_4 left margin stats: Counter({'0': 217})
p_4 right margin stats: Counter({'0': 217})
div_3 left margin stats: Counter({'': 147})
div_3 right margin stats: Counter({'': 147})
p_3 left margin stats: Counter({'0': 594})
p_3 right margin stats: Counter({'0': 594})
Cleaning up manifest...
Trimming unused files from manifest...
Creating KFX Output...
Software versions: KFX Output 2.15.0, calibre 8.4, Windows-10-10.0.26100-SP0
KFX Output plugin help is available at https://www.mobileread.com/forums/sh...d.php?t=272407
Splitting markup on page breaks and flow limits, if any...
Successfully converted input format to EPUB
Converting C:\Users\Elaine\AppData\Local\Temp\calibre-0n5aisp3\9wauhbdi.epub
Converting C:\Users\Elaine\AppData\Local\Temp\calibre-0n5aisp3\9wauhbdi.epub to KPF
Preparing book C:\Users\Elaine\AppData\Local\Temp\calibre-0n5aisp3\9wauhbdi.epub for conversion
Added display:inline to 15 br in OEBPS/title_page.xhtml
Launching Kindle Previewer 3 (unknown_37127680) - CLI

And I've attached Calibre's debug log as well. The fic was https://archiveofourown.org/works/44806654. THere were three others, all stalled at 67%.

For the moment I'm going to try to find a downrev Kindle previewer as it updated a few days ago, and now I'm seeing problems. Anyone know of a place to get it?

[jhowell]

Originally Posted by Elaine T

Yesterday i was converting fics to put on my 2022 paperwhite, and some of them stalled - for several hours, stalled at 67% done. This morning I tried one of them again, and it happened again.

It appears that something on your system is interfering with the Kindle Previewer. The log indicates that you have the latest Previewer version which should work with this plugin.

Some ideas:

Uninstall and then reinstall the Previewer. Something may have gone wrong during the update.

Disable any extra antivirus software you have installed, other than that included by default with Windows.

Reboot your PC in safe mode and try running it again.

Originally Posted by Elaine T

For the moment I'm going to try to find a downrev Kindle previewer as it updated a few days ago, and now I'm seeing problems. Anyone know of a place to get it?

You can find older versions at the Internet Archive.

[Elaine T]

Originally Posted by jhowell

It appears that something on your system is interfering with the Kindle Previewer. The log indicates that you have the latest Previewer version which should work with this plugin.

Some ideas:

Uninstall and then reinstall the Previewer. Something may have gone wrong during the update.

That seems to have worked.

You can find older versions at the Internet Archive.

I did try this, but they said they couldn't actually install. FWIW. I've still got them and will keep them around to try again if the problem recurrs.

Thanks for your help.

[tamhas]

I have been successfully using the plugins to handle KFX *input* for a while now, but recently my wife sent me a set of epubs to load into Calibre since I have the master version. They loaded into Calibre just fine, but when I tried to convert one to KFX, I got the following:

calibre, version 8.3.0
ERROR: KFX conversion failed: <p><b>Cannot convert A Stone Cold Murder</b><br/><br/><b>Conversion error:</b> Exception('Kindle Previewer 3 not installed as expected. (C:\\Users\\Administrator\\AppData\\Local\\Amazon\ \Kindle Previewer 3 missing)')</p>

I'm guessing I am missing something. FWIW, I don't reallu need these particular books in KFX since I will never read them, but it seems like I should have the capability.

[PeterT]

If you look at the first post of this thread it has the installation instructions which include the install of Kindle Previewer.

[tamhas]

And the Kindle Previewer is what I need to *convert* from epub to KFX?

[jhowell]

Originally Posted by tamhas

And the Kindle Previewer is what I need to *convert* from epub to KFX?

Yes, the bulk of the conversion process is performed by the Kindle Previewer.