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Old 01-18-2018, 07:59 PM   #346
slowpokezzz
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Method 2 - Disable KFX support in Kindle for PC/Mac

As an alternative, a method is available to prevent versions 1.19, 1.20 and 1.21 from making use of KFX format.
  • Exit the Kindle program.
  • Open a command window (PC) or terminal window (Mac).
  • Cut and paste the appropriate command for your operating system to disable the renderer-test program.

    Mac:
    Code:
    chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test
    This prevents the renderer-test program from executing, blocking the use of KFX.

    Mac Note: If the chmod command fails with a permission error try again using sudo.
  • After restarting the Kindle program any books previously downloaded in KFX format will no longer open. You will need to remove them from your device and re-download them. All future downloads will use the older Kindle formats instead of KFX although they will continue to be placed in one individual subdirectory per book.

If you keep getting a Terminal error, such as:
-bash: mod: command not found

Use this instead:
sudo chmod -x /Incompatible\ Software/Kindle.app/Contents/MacOS/renderer-test

Not sure why, but my Kindle App was buried in a folder called "Incompatible"... I don't really care why. I'm leaving there.

Anyways, I can 100% confirm that this method worked for me.
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Old 01-22-2018, 03:06 PM   #347
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Hi,
I am new to the party of e-readers and not able to utilize the options available.

I have tried both Method 1 and 2 but unable to download the book to my PC.
I dont own the kindle device and directly trying to purchase the book from kindle store and want it to convert into readable format on KOBO AURA ONE which I am planning to buy in next day or 2.

Please help me with steps to resolve the error.

Regards,
Shri
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Old 01-22-2018, 03:46 PM   #348
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It may be that the book you're trying to download is only available in KFX format. What language is it in?
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Old 01-22-2018, 04:03 PM   #349
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Quote:
Originally Posted by pdurrant View Post
It may be that the book you're trying to download is only available in KFX format. What language is it in?

The language is Marathi. Not sure if its available in ONLY KFX format.
Is there any way to convert it if its only available in KFX format?

I am really looking forward to buy Kobo but if there isnt any way then I have to buy kindle as books I am looking to read are only available in kindle store.

Thanks in advance for help.
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Old 01-22-2018, 04:40 PM   #350
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There is some code archived at Apprentice Harper's github repository that's a stand-alone Windows KFX DRM remover. I can't remember if it's easy to use or not.

If it works, then jhowell's KFX import plugin will also be needed before you can convert to ePub.
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Old 01-22-2018, 06:15 PM   #351
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Quote:
Originally Posted by Shri View Post
The language is Marathi. Not sure if its available in ONLY KFX format.
Is there any way to convert it if its only available in KFX format?
Books in Indic languages, such as Marathi, are only available from Amazon in KFX format. As pdurrant stated above, if you want to convert that book for use outside of Amazon's apps and devices then you will need to use the KFX Input plugin. (This is listed as Method 4 in the first post of this thread.)

You will need to undo the change made in Method 2 and restart Kindle for PC. It will then allow your Marathi book to be downloaded. The procedure for using the KFX Input plugin for conversion is somewhat complicated. You will have to decide whether or not having access to that book is worth the trouble involved. See the instructions for that plugin for more information.
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Old 01-22-2018, 10:19 PM   #352
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Quote:
Originally Posted by pdurrant View Post
It may be that the book you're trying to download is only available in KFX format. What language is it in?
I didn't realise that some books are only available in KFX format. I note that it was mentioned that books in Indic languages are only available in KFX format. Are there any languages that are only available in KFX format? And are there any other types of books from the Amazon store that only have KFX format? I know how you can tell if a book has KFX (Enhanced Typesetting: Enabled) but is there a way to tell if that book only has KFX available?

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Old 01-23-2018, 05:06 AM   #353
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Thank you all for the quick replies.

I will try my luck with converting the KFX format but not sure if there is any easy way.

Thanks again
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Old 01-23-2018, 08:38 AM   #354
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Are there any languages that are only available in KFX format? And are there any other types of books from the Amazon store that only have KFX format?
Amazon has been rolling out many new features in KFX format for some time now. In most cases there is a fallback to an older format with fewer features. Kindle in Motion and enhanced textbooks (with audio and video) both provide significantly more content in the KFX format than other formats.

Indic language books are different in that there is no fallback format. It is KFX or nothing. It appears that Arabic language books, currently being rolled out and not yet available on Kindle for PC, will also have this restriction. Some upcoming e-book features, such as MathML (supported in the latest Kindle Previewer), may possibly be KFX-only.

Quote:
Originally Posted by Inukami View Post
I know how you can tell if a book has KFX (Enhanced Typesetting: Enabled) but is there a way to tell if that book only has KFX available?
I don't know of any way to tell for certain, but you can sometimes tell by looking at the list of supported devices for the book you intend to purchase. If the "Available on these devices" popup shows newer Kindles and apps, but no older devices such as Kindle (5th Generation), Kindle Keyboard, and Kindle DX, that book may be a KFX-only book.
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Old 01-29-2018, 07:55 AM   #355
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Thank you Jhowell! Method 1 worked for me. Thanks.
I am blind, and it's only on Kindle that I found some of the bokks I wish to read; even Bookshare hasn't some of them due to intellectual property laws.
I convert Kindle books to EPUB which ables me to read them in the VoiceDreamReader application.
Your work si very important to let blind and dyslexic people access books.
Best regards.
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Old 02-01-2018, 07:10 AM   #356
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Thanks jhowell for the clarification.

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Old 02-01-2018, 07:52 AM   #357
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Thanks jhowell for the clarification.

Inukami
There are very, VERY few books in English that aren't available in Mobi/KF8 format, Inukami. In addition to the KFX-only books that jhowell mentions, another group are books that are in "Print Replica" format (a PDF file in a Kindle "wrapper"). These tend to be reference-type books. The two Print Replica books I have personally are the "New Oxford Shakespeare" and the "New Oxford Annotated Bible", both of which I deliberately bought because they were in Print Replica format.
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Old 02-12-2018, 10:54 AM   #358
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just want to add my huge thanks for this thread...

On my macbook, the chmod terminal command worked a treat - and I do not remember ever updating my Kindle on the mac (precisely to avoid the kfx farrago), and had the 'do not update' option checked'.. I call shenanigans.

Love my Oasis bit I deliberately avoid kfx so i can get the azw3 version, convert to epub then back to azw3 with ChareInk font embedded.

Sounds like a bit of a faff? Not if you've experienced how superior ChareInk (from this wonderful site) is to Amazon's latest and not so greatest 'Bookerly'... ( and with hyphenation added and all done in the marvellous and splendiferous Calibre).
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Old 02-12-2018, 11:52 AM   #359
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Using 1.17 doesn't import any metadata. Is there a way in Calibre to do this?

Tnx
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Old 02-12-2018, 11:56 AM   #360
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I'm using K4PC and I'm certainly getting the metadata that's in the book. Are you not getting any metadata at all? No title or author?
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