I've got a large amount of Kindle kfx ebooks in my library. How can I remove drm from kindle kfx ebooks?
Quick Access:
- Get the Most Powerful Kindle DRM Removal -- Epubor Ultimate
- Method 1. Kindle Books Downloaded via Kindle for PC(Recommended)
- Method 2. Kindle Books Downloaded via Kindle e-Ink(Recommended)
- Method 3. "Download and Transfer via USB" (No longer Available since 2025/2/26)
- Method 4. Download Kindle books via Android Emulator on Mac (For Mac Users Only)
What is Kindle KFX format?
Kindle KFX format has been launched in 2015 but applied to almost all Kindle eBooks later in 2017. Nowadays, no matter the books downloaded via Kindle desktop for PC/Mac or Kindle e-ink device are all in Kindle KFX format. Usually, when you check the books you downloaded to your Kindle eReader, you'll find that they are all with the .kfx extension.
Knowledge share 1: The Kindle KFX eBooks you downloaded via Kindle for PC/MAC are not with the extension .kfx, but .azw as the below picture. Although, the Kindle books with the extension .azw, is the KFX format which can be told by the file structure and content.
Knowledge share 2: If you are using the Mac computer, some of your eBooks downloaded with Kindle for Mac may be in Kindle KCR format instead of kindle kfx, please follow the guide: how to remove drm from kindle kcr format to handle your kindle kcr books.
Updated 2025: It seems Kindle for Mac has abandoned the KCR format. All kindle books downloaded via latest kindle for Mac are in kfx, azw8, and azw9.
Knowledge share 3: Just as other Kindle formats, Kindle books in KFX format are protected by Kindle DRM. "How to remove kindle KFX DRM?"is the most frequently asked question. In the following part, 2 different methods are introduced to remove drm from Kindle ebooks, no matter your kindle books are downloaded via kindle for PC/Mac or Kindle eink devices. "Download and Tranfer via usb",or even downloaded via kindle for Android doesn't work since 2025.
Get Yourself the Professional Kindle DRM Removal--Epubor Ultimate
To remove the drm from kindle ebooks, please download Epubor Ultimate first. Epubor Ultimate -- the first eBook tool on the market can remove Kindle KFX DRM quickly and losslessly. Below are the main reasons that this software is highly recommended.
Reason 1. Smoothly remove DRM from Amazon Kindle, kobo, Google Play and Nook books etc.
Reason 2. Easily convert eBook to any other formats. Batch conversion is also well supported.
Reason 3. 7/24 Customer Support.
Method 1. Kindle Books Downloaded via Kindle for PC (Support K4PC 2.8.0)
Step 1. Download Kindle KFX Books via Kindle for PC
Download and install the kindle for PC from the links below and download kindle books. Please ensure you are using the Kindle for PC 2.8.0 to download kindle books. If not, uninstall your currnet version and install the correct version from the below link.
Step 2. Launch Epubor Ultimate to remove Kindle KFX DRM
Download and install Epubor Ultimate.
Then click on "Kindle" tab in the left column to load your downloaded books. Wait a few seconds, your downloaded Kindle eBooks will be detected and displayed to Epubor Ultimate.
Drag the Kindle books from the left to the right column, the DRM will be stripped automatically and you can see "Decrypted" at the end of each book.
To find the decrypted Kindle KFX eBooks, click on “Decrypted” or click on "Output folder" icon at the bottom right.
Optional pro tip. Convert Kindle KFX to PDF/Epub/AZW3/Mobi
When your books have been decrypted, please find the convert button at the central button and select the output format at the drop down list and then click on "Convert to ...”.
When the conversion has finished, you will see "Succeeded". Just click on "Succeeded", you can open the folder stored the converted eBooks.
Watch Video Tutorial on Removing DRM from Kindle for PC
Method 2. Kindle KFX eBooks Downloaded via Kindle e-Ink Devices
Step 1. Download Kind KFX eBooks via Kindle e-Ink device
If you happen to have a Kindle device, you can directly tap the book title at the library to get your Kindle eBooks downloaded.
Step 2. Remove Kindle KFX DRM with Epubor Ultimate
Plug in your Kindle e-ink device to your computer with USB, and then run Epubor Ultimate. The Epubor Ultimate will automatically detect your Kindle e-ink device and show all downloaded books in the left column under your eReader tab. Just drag the books from the left to the right column and the books are decrypted automatically.
Step 3. Convert Kindle KFX to Epub/PDF/Mobi/azw3
For converting the KFX to Epub/PDF/MOBI/AZW3, just select the output format and click on "Convert to ...". Wait until the "Succeeded" appear. Then you can click on "output folder" at the bottom right to see all your converted kindle kfx ebooks.
Q1: Epubor Ultimate does show kindle device in the left panel . What should I do?
Kindle eink device released before 2024(11th generation and before):
When you connect your Kindle eInk device to a Windows computer, your Kindle books are typically stored in the following path:
E:\documents\Downloads\Items01.
Usually, your kindle device will display in the left side of Epubor Ultimate. If not, follow these steps.
1. Click the Favorite tab in the toolbar.
2. Click Browse, then paste or navigate to your Kindle's book folder path.
3. Select the folder and click OK to confirm.
Your Kindle books should now appear under the Favorite tab.
To remove DRM, simply drag the books into the right-hand panel.
Kindle eink device released later than 2024 (12th generation and later):
If your Kindle eInk device appears as "Kindle Paperwhite" (or another model) on your Windows computer, your books are usually located in: Internal Storage\documents\ 
Manually copy the .kfx files along with their corresponding .sdr folders from the Kindle's documents folder to a local folder on your PC (e.g., Desktop). Note: Please do not copy only a single ".kfx" file for decryption. Doing so will result in DRM removal failure. Always copy the complete set, including the corresponding `.sdr` folder.
Go to Epubor Ultimate > Settings > Kindle,
Enter your Kindle device’s serial number, then click OK to complete the setup.
Open Epubor Ultimate, and drag the copied .kfx files into the main interface to proceed with DRM removal.
Method 3. Download &Transfer Kindle Books via USB (No longer Available since 2025/2/26)
Important: Starting February 26, 2025, the “Download & Transfer via USB” option will no longer be available. If you haven’t backed up your purchased Kindle eBooks yet, now is the time! This guide will no longer work once the “Download & Transfer via USB” option is gone.
Besides afore mentioned methods of downloading Kindle books, is there any other method to download Kindle books? Of course, here is another way to download your kindle books. You can download Kindle books via Kindle for Android or iOS, but there is no way to remove DRM from books downloaded via this method.
Alternatively, you can download your kindle books via "Download and transfer via usb" from Amazon website directly if you have any Kindle device registered with your Kindle account information.
Important step: Please input your Kindle serial number to Epubor Ultimate for removing kinle kfx drm successfully. After get your kindle serial number, on Epubor ultimate, click " User center" icon at the top right corner-->>Settings-->>Kindle-->>input the Kindle serial Number and then click on "Ok".
Then drag your kindle books downloaded via "Download and tranfer via ubs" to Epubor ultimate, and your Amazon kindle kfx drm is cracked.
Method 4: Download Kindle books via Android Emulator on Mac(For Mac Users Only)
The previous three methods have demonstrated how to remove DRM using Epubor Ultimate. However, there is another way to remove Kindle DRM on Mac: Epubor Kindle Converter . You might wonder why you should consider using this software when Epubor Ultimate is available. Well, if you're using Windows, you can effortlessly remove Kindle DRM with Epubor Ultimate. However, for Mac users, the situation is a bit more challenging. You can only download kindle books with the latest kindle for Mac. That means your downloaded kindle books are encrypted with a tougher kindle drm which has not been cracked by any software at present.
In such cases, Epubor Kindle Converter becomes your only option.
Note 1: Kindle Converter supports not only the kindle books released before, but also the new released kindle books in 2025.
Note 2: Kindle Converter works only on Mac computer.
Download Kindle Converter Mac Intel Download Kindle Converter Mac Apple Silicon
To use this method, please follow the below steps:
- Step 1: Download and install Android Emulator on Mac.
- Step 2: Install kindle for android on the Android Emulator.
- Step 3: Launch Epubor Kindle Converter for Mac.
- Step 4: Download Kindle books to Android emulator.
- Step 5: Remove kindle drm on Mac with Epubor Kindle Converter.
Detailed guide is here:
Final Words
After reading the above ways of removing Amazon kindle drm, can you remove drm from your kindle kfx ebooks now? If you have any issue during the Amazon DRM removing process, please feel free to contact us via epubor.iris@outlook.com to get further assistance.
Iris Yan is a passionate member of the Epubor team, dedicated to enhancing your ebook reading experience. She shares insightful tips, tricks, and practical advice to help you get the most out of your digital library. Join her on the journey to reading excellence today!
While the automatic download with the new Kindle Cloud Reader worked yesterday as described, it does not today. Whatever I do and even with a long waiting time, the download does not start.
No message shown, just not starting the download. I'm using Macbook Catalina 10.15.6 with Chrome 84.0.4147.105 and Cloud Reader PlugIn.
Dear Sir/Madam,
We're sorry to tell you that Amazon has upgraded Kindle Cloud Reader in August 2020 for security reasons, which has finally made it impossible to download books from Kindle Cloud Reader. As a result, Epubor KCR Converter can’t help you convert the Kindle books from now on.
As per your purchase for Epubor KCR Converter, here we provide you with several solutions. Please have a try and tell us how it works. If you meet any questions during the process, just feel free to contact us and we will try our best to help you.
For Mac users:
If you have a Kindle e-ink device,
you can follow this guide to decrypt and convert Kindle books with Epubor Ultimate:
https://www.epubor.com/how-to-remove-drm-from-kindle-kfx-ebooks.html#meth4
If you don't have a Kindle e-ink device,
and your macOS is below than 10.15 Catalina,
you can follow this guide to decrypt and convert Kindle books with Epubor Ultimate:
https://www.epubor.com/how-to-remove-drm-from-kindle-kfx-ebooks.html#meth2
and your macOS is 10.15 Catalina or higher,
we're sorry to tell you that there is no any other effective way to decrypt Kindle books, including using Epubor Ultimate, Epubor KCR Converter or any other tool in the market.
At last and once again, we're sincerely sorry and apologize for the inconvenience caused.
If you prefer something free, please try Calibre.
Thank you for using our software and sincerely sorry for this issue.
Please follow this guide to remove kindle drm on mac catalina or big sure:
https://www.epubor.com/epubor-software-now-support-macos-big-sur.html#method2
Any more problem, please feel free to contact us via support@epubor.com.
I've come across 2-3 books that need the latest version of Kindle to be read. If I keep Epubor running in the background then those books don't get downloaded. If I close Epubor, only then Books get downloaded, but then Epubor isn't able to remove DRM and asks me to delete the ebooks and re-download the book, while keeping epubor running in the background.
But running the Epubor in the background doesn't let me download the books... Are you getting me ?
Thank you for contacting us. Yes, I got you. That's because your kindle books can only be downloaded via the latest kindle app. And this is decided by the Publisher and cannot be changed. We are sincerely sorry to inform you that this kind of ebooks can not be decrypted because they are encrypted with tougher kindle drm.
We are sincerely sorry for the inconvenience caused.
To use download and transfer via usb method, you at least should have one kindle eink device registered with your account information.
If you cannot find via usb option, that's because you have no kindle eink device registered.
Method 3. Download &Transfer Kindle Books via USB
2022-12 not work this method please check
Please, fix it
It seems the amazon kindle has changed something in the new published kindle books. It requires the latest kindle app to download it.
Now we are working on this issue. Once there is a solution, we will let you know. The older kindle books still can be cracked with Epubor Software.
There is still another way to remove drm from this kind of kindle books if you have any kindle eink device registered with your amazon account. Please download the kindle books via "Download and transfer via usb" and then remove kindle drm with Epubor Ultimate. Here is the detailed guide: https://www.epubor.com/how-to-remove-drm-from-kindle-kfx-ebooks.html#meth4
Thank you for your message and we are sincerely sorry for this issue.
We arware of this issue. It seems the amazon kindle has changed something in the new published kindle books. It requires the latest kindle app to download it. For the books published before 2023, it still can be downloaded with old kindle app and can be decrypted with Epubor Ultimate.
Now we are working on this issue. Once there is a solution, we will let you know. The older kindle books still can be cracked with Epubor Software.
For the ebooks published in 2023, here is still another way to remove drm from this kind of kindle books if you have any kindle eink device registered with your amazon account. Please download the kindle books via "Download and transfer via usb" and then remove kindle drm with Epubor Ultimate. Here is the detailed guide: https://www.epubor.com/how-to-remove-drm-from-kindle-kfx-ebooks.html#meth4
Any more problem, please feel free to contact us.
Tried method 3 - download and xfer via USB and it's not working. I have an old Fire tablet which I am using and which is registered to my Amazon account
Here is what I did.
1 Went to content and devices and selected the download & transfer via USB
2. Plugged my fire into the computer I was using
3. Dragged and dropped the transferred file to EPU
Got the cant convert message
Then I tried:
1. Take the serial number of the FIre tablet and plugged it into EPUB
2. Dragged and dropped the transferred file onto EPUB
Got the cant convert message
Am I missing something or their other options
I have the same problem. I can still open all the old books. Only the new ones I bought in 2023 no longer work.
That also does not work:
"There is still another way to remove drm from this kind of kindle books if you have any kindle eink device registered with your amazon account."
Can you please fix the problem, thanks
This is so frustrating and unfair to those of us who purchased a lifetime license and who were satisfied customers up until the converter no longer works for books after 2023.
As a longtime customer for several of your products I’ll be considering purchasing one of your competitor’s software if at least a refund isn’t offered soon.
I'm looking at the reply from: mikebrown that reads: "Download and Transfer by USB" works if you download the title and then drag that file into Epubor Ultimate. Don't try and access the file in "My Kindle Books." Worked for three titles that I needed to add to my Calibre Library.
That seems helpful but you would think someone from ePubor would publish a tutorial on how this is done. This tells you WHAT to do but doesn't show HOW to do it. You've got people (myself included) frustrated by not being able to get these newer ebook formats converted and it seems like you're recommending a method that no longer works.
Can someone from ePUBOR Ultimate show a step-by-step tutorial on how to do what mikebrown shares on this thread? You've got long-time customers who can't get this to work. Such negative feedback with likely deteriorate user confidence and reviews for a program that has always worked so well. I loved ePUBOR Ultimate until this happened.
Hello, thanks for your feedback.
We'll update our tutorial and add the steps you mentioned. Thank you so much!
best regards,
Epubor Team
Hello, thanks for your comment.
If you still failed to remove DRM using the method we mentioned, please feel free to contact us via support@epuor.com, we're willing to help you solve this problem.
Best regards,
Epubor Team
I believe that I read that the KDX DRM could be bypassed by downloading to a registered Kindle Paperwhite and then transferred(?) Is this a viable option now? I do not care to buy a Kindle device however if it will allow me to bypass the KDX DRM I would be willing to do so. I especially do not want to buy one if it will not work.
Also If it does work, what is the oldest generation Kindle that has the capability?
Thank you
Hello, thanks for your message.
If you don't have Kindle device, we recommend our new product Kindle Converter to decrypt and convert the Kindle books published in 2023. please learn more here:
https://www.epubor.com/kindle-converter.html
User guide: https://www.epubor.com/kindle-converter-user-guide.html
Any other questions or concerns, please feel free to contact us via support@epubor.com.
Best regards,
Epubor Team
NOPE. I have tried all 4 methods you suggested and none have worked. Why don't you just say you can't do it, instead of making us waste more money on the Kindle converter software that still doesn't work?
I followed your instructions to the letter and the kindle books I downloaded to the android APK app wouldn't even show up on the left side. I followed all instructions on what to do when the books won't load. Still won't.
Just stop wasting our time, and tell us to just download via USB in AZW3 format, and get a reader for AZW3 format to read the books on. Just tell us you can't deliver the product you charged us for.
Hello, thanks for your comment.
Do you update your Epubor Ultimate to the latest version?
The lates V3.0.15.192 Epubor Ultimate allows you to decrypt and convert your new Kindle books downloaded by the latest V2.0 Kindle for PC. Please download the latest version of Epubor Ultimate and try again, thank you!
If there is still the same problem, please feel free to contact us via support@epubor.com.
Best regards,
Epubor Team
I have even worse news. So the AZW3 files you download via USB transfer, you can't even read with an AZW3 reader anymore. This is a new update. DRM won't let you read it, unless it's on a Kindle e-reader, cloud reader, or kindle app.
Even with the latest update, Epubor cannot convert books using the latest version of Kindle.
The only thing Epubor is good for now, is to use the old version of Kindle for PC and convert books published before 2023. And if that book is a Kindle Unlimited book, you have to buy it.
Just tell us the truth, your software is useless now. Stop having us jump through hoops and spend more money only to be back on square one.
Hello, thanks for your comment
With the help of new V3.0.15.912 Epubor Ultimate, you don't need to downgrade your Kindle for PC to the old version, you can use the latest V2.0 Kindle for PC to download your Kinlde books, and use Epubor Ultimate to remove DRM.
Any other questions or concerns, please feel free to contact us.
Best regards,
Epubor Team
I don't understand the good reviews here.
Epubor's conversion has failed on every single .kfx file, always with the same error message:
delete file, redownload, and start Epubor conversion.
I have firmware 5.16.2.1.1 on my Kindle Paperwhite.
What is also fake, is that the rating is automatically 5 stars. We cannot change it.
I tested Method 1 on the comic books I bought from Amazon Japan, and alas, this worked like a charm! I even tried it to decrypt the books published in 2024 (which my DeDRM plugin for Calibre could not handle), and it worked perfectly.
Just to make sure, I can't say for other file formats and/or methods that some users are not happy about. I only tested it on AZW files I downloaded via the latest Amazon Kindle software for Windows.
I spent 2 hours to find the solution.
Esta aplicación ya no es compatible. Para ver este contenido, ya está disponible un Kindle para Mac nuevo y mejorado que puedes descargar desde la Mac App Store.
Tus libros y colecciones:
una vez que descargues la nueva aplicación e inicies sesión en ella, podrás acceder de inmediato a todos los libros Kindle que hayas comprado en Amazon.
Si utilizas la última versión (1.40.1 o superior), tus colecciones se transferirán automáticamente.
Si no tienes la versión más reciente, sigue los pasos que se indican aquí.
Tus documentos personales:
los documentos personales deben importarse mediante Send to Kindle para leerlos en la nueva aplicación.
Descarga:
haz clic aquí o visita la Mac App Store para descargar e instalar la nueva versión. También puedes acceder a la experiencia Kindle para Web aquí.
The kindle for mac 1.40 cannot download kindle books any more.
Kindle is fast blocking all ways to access your books except using their own app with no personal copy
- Amazon has completely disabled the "download & transfer via USB" option.
- Kindle for Mac version 1.40 no longer works.
- KFX format has not yet been cracked.
What are the viable options left for DRM removal???
Da qualche giorno non si riesce più a convertire i libri. Se si aprono dall'app Kindle (vers. 2.4.0) mi dice che il libro non è disponibile e devo aggiornarla, se provo collegando direttamente il kindle a epubor non riesce comunque a rimuovere il DRM. Cosa ci è rimasto da fare ora?
Yes, Kindle for PC 2.4.0 will no longer be able to download Kindle books published after April 22, 2025.
If you have a Kindle device, you can still download these books directly to your device and then remove DRM using Epubor Ultimate.
We are currently working on a solution for this issue and will notify you as soon as we have any updates.
Thank you for your patience!
After plugging in your Kindle eInk device, navigate to your downloaded KFX files at this path: E:\documents\Downloads\Items01\
kindle kfx path on win
Note: If your Kindle eInk device appears as "Kindle Paperwhite" (or another specific model name) and your Kindle books are stored under the Internal Storage/documents/ directory, you’ll need to copy the KFX files along with their corresponding .sdr folders to the same directory on your desktop. Once done, follow the steps below to remove Kindle DRM.
Then, go to Epubor Ultimate settings > Kindle, enter the serial number of your device, and click OK.
Next, drag and drop the KFX files into the Epubor Ultimate interface, and the Kindle DRM should be removed.
Yesterday I bought an e-book. I can open it with the latest version of Kindle for Pc Windows (2.7). The azw file that results from this can't be processed in epubor though. Epubor prompts me to downgrade to Kindle for Pc 2.4. So that's what I do. When I want to open the book in the 2.4 version it won't let me. The kindle for Pc app prompts me to upgrade to the latest version.And there I am, a complete deadend.
Please help!
can you help?
Once there is any progress, we will let you know. If you have a kindle eink device, please download your kindle books via it and then remove drm with Epubor Ultimate.
If you have a kindle device, you can follow this guide to remove drm: https://www.epubor.com/how-to-remove-drm-from-kindle-kfx-ebooks.html#meth3
If your Kindle eInk device appears as "Kindle Paperwhite" (or another model) on a Windows computer and your books are located in "Internal Storage\documents\".
Manually copy the ".kfx" files along with their corresponding ".sdr" folders to a local folder on your PC (e.g., Desktop). Then follow the steps below to remove DRM.
The book is from May 2025, any solution yet?
Thanks
Once there is any progress, we will let you know. If you have a kindle eink device, please download your kindle books via it and then remove drm with Epubor Ultimate.
If you have a kindle device, you can follow this guide to remove drm: https://www.epubor.com/how-to-remove-drm-from-kindle-kfx-ebooks.html#meth3
You can also send the Amazon kindle books purchase link to us so that we can check this issue further.
We will soon update the Epubor Ultimate to support kindle for pc 2.7. You can check back a couple days later to get the updates.
Any more problem, please feel free to contact us.
Congratulations
It's only been a matter of days since the Kindle DRM type was changed and your technical guys have already updated Epubor Ultimate to now work with Kindle 2.7.
Well done and thank you. Epubor Ultimate is worth The money!!
Thanks
But I cannot delete DRM.
Why ?
Please help me !
Method 1 no longer works on the Mac, as Kindle for Mac 1.40 no longer works - which is Amazon's fault, not Epubor's. With Methods 3 and 4 also no longer working, is there any approach that works on a Mac? (I don't have an eInk device with which to test Method 2.)
On the PC side, I've had some luck with Method 1. Although I understand that newly released Kindle books cannot be downloaded with Kindle for PC 2.4.0, I'm using Kindle for PC 2.7.1 and have been able to download recently released (May 2025) comics from Comixology and decrypted them with no problem. Maybe this issue is resolved?
It might be a good time to post a general "status update" and revise this page to reflect only the methods that are working. As it is, it can be a little confusing. Thanks!
Download to k app for pc using v2.4 now getting error message:
"This item is not available for this device type. Your k app requires and update to view this content..."
K4PC2.7.1 is still working fine to download your books.
DRM locked and unable to convert with EpuborUltimate for books downloaded during Aug 2025 however.
K paperwhite signature ed running 5.18.3 is NOT working for drm removal on books downloaded during Aug 2025 either. Crashing EPuborUltimate during process.
It is epub after decrypted right now, could I chnage to azw3?
Using trial version of Ultimate so hopefully this is not the issue - would definitely want a license but not paying until I am sure it works OK.
Have some KFX files downloaded on my Kindle Paperwhite Series 11. It shows up in EPUBOR Ultimate so I drag them over to EPUBOR and get a popup window with "Kindle Error - please redownload files and run EPUBOR software to remove Kindle KFX DRM".
Tried to do this several times only to get same error each time.These are files that if I transfer to Calibre with latest KFX-INPUT and DEDRM plugins all I get is a KFZ-ZIP file and DRM cannot be removed. I checked and I do have a Kindle key generated within EPUBOR Ulltimate.
If your kindle paperwhite is updated to firmware 5.18.5, the kindle books will be encrypted with harden drm. So there is no tool can crack them.
You can download kindle books via kindle for PC2.8.0 and then remove drm with Epubor Ultimate.
If you need more assistance, please feel free to contact me at epubor.iris@gmail.com
Some recent books downloaded via Kindle for PC 2.8 fail on DRM removal. Also weird that the guide says to download/install 2.8 but the Epubor Ultimate app then says to auto-downgrade to ver 2.4? Seems some wires are crossed right now but for most books from bought this year DRM was removed w/o downgrading back to Kindle 2.4.
Per error message re-downloaded and still failing for the affected books. The DRM-failed books include Joe Abcrombie's The Devils which is the most recent book I purchased so not sure if Amazon has tweaked DRM again? In any event maybe an update to the guide is in order.
If you fail again, please contact me at epubor.service@gmail.com to get further assistance.