Adobe Digital Editions offers an exciting opportunity to read and manage eBooks and other digital publications. We can also use it to download digital content with Internet connected. Users can copy electronic books from their personal computers to other computers, however, the others can't simply read the copies transferred to them or print the books out because of the DRM protection.
That's why so many people want to strip Adobe DRM, and this is also the reason why we write this article for you. 3 parts are covered here concerning how to remove DRM from Adobe protected ePUB & PDF books, among which the second section is especially important as the decryption key is exactly generated during this process.
Launch Calibre (for Windows, for Mac), add your ePUB & PDF books and double click one title to open. If the following warning window pops, your book will be DRM protected. For your .ACSM files, just convert them to EPUB so as to be supported by Calibre.
Or you can open the PDF books with your favorite PDF reader. DRM-protected PDFs will come with a similar alert window.
If you can read your books on Calibre without restriction, they will be DRM free. Just feel free to transfer them to your family or friends.
1. Download & install Adobe Digital Editions and authorize your Adobe Digital Editions with your Adobe ID.
2. Make sure the ePub & PDF files can be read on ADE!
For EPUB & PDF books from Sony/Kobo/ other stores, refer to how to read eBooks on ADE.
For .ACSM files, refer to how to convert .ACSM to EPUB to read on ADE.
The decryption key will be generated during the reading process. If you fail to read eBooks on ADE, you will be likely to fail to remove DRM as well. To solve this problem, you have to delete all your books under ADE folder and redownload them under the newly authorized ADE.
1. Download and install DRM Removal for Adobe protected ePub and PDF books.
2. Launch this tool, it will automatically detect and upload your books saved in ADE's default folder. As you can see, all the books here are listed on the right side.
If the program doesn't detect your books, you can manually set the input location by "Help" -> "Settings" -> "ADE". You can also just drag those eBooks to the program's interface (for registered version).
To check the output books, you can click "Remove DRM" to open the output folder. Or you can also right click on the title in the interface and choose "Explore output folder", then you will see the decrypted DRM-free eBooks.
Some Good Tips for You
For Windows: ...\My Documents (or Documents)\My Digital Editions\...
For Mac: Users/ ... (Your computer name)/Digital Editions/...
2. Problem with authorizing ADE:
An error "problem decrypting session key" may occur if you use different ADE versions to download ACSM files or open eBooks. In this case, you have to delete all your downloaded books under your ADE folder and redownload them with the authorized Adobe ID again.
3. Win 7 or Vista users:
This guide mainly applies to Win XP and Mac. If you are using Win7 or Vista, please right click on the program icon and choose "run as administrator".
4. Convert Books with Calibre:
If you want to convert the books, use the best eBook manager and converter Calibre!
5. Remove DRM from Kobo eBooks:
Since Kobo eBooks are also protected with Adobe Adept DRM, you can use this method to help you. But here is an easier way to go which is better than removing from Adobe Digital Editions.
Read this article in French: Supprimer les Adobe DRM des eBooks PDF et ePub
Search Epubor to find anything you want to know about eBooks.
Ada Wang works for Epubor and writes articles for a collection of blogs such as ebookconverter.blogspot.com.