Thread: [Conversion Plugin] KFX Input
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Old 06-24-2024, 10:42 AM   #712
jhowell
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Posts: 7,094
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Join Date: Nov 2011
Location: Charlottesville, VA
Device: Kindles
Quote:
Originally Posted by sashsz View Post
Amazon published some new update to Kindle and the new books seem to not be able to get unprotected. I used to use LD Player for this purpose. Now it doesn't work.
What I noticed is that the new book files are .kfx. There is some new file called amzn1.drm-voucher.v1. I think there might be the key to unlock the kfx archive file with the book contents.
It appears that you are using a recent version of the Kindle for Android app in your emulator to download your books. Doing that will produce books in KFX format but you will be unable to obtain the key needed to unlock them.

See the thread DRM workaround: Kindle for Android for more information on that technique. If you do it properly with an old enough version of Kindle for Android you can avoid KFX format and remove the DRM.
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