Once the process is complete, you will be prompted to save the DRM-free books onto your computer. Epubor will automatically strip the DRM from your books.
Seems to contain a lot of scripts related to how the software treats the data it gets from the internet, at the very least, so they may contain some clue.Īs a side note, it's quite likely that database.sdf has the same password for every copy of the software, given that the old bwdb.dsf also had a single password for every copy (there's still a bdsw.dsf in the program folder with said password, but it's empty). One exciting thing with the Epubor DRM removal App, you can import several Kindle books and remove the DRM in bulk. The description of the latest encryption method is something like: 'you read from a password-protected database a password for an encrypted zip file that contains another encrypted zip file that contains an AES key divided in 3 different encrypted files, which then you use to decrypt a jpeg image, which you then deobfuscate with a XOR-phrase found in said encryted zip, then you decrypt the first 10727 bytes with the AES key, then you deobfuscate it again', more or less.Īt most, I know that the starting point is an encrypted database called database.sdf that's located in %USER%\AppData\Roaming\BOOK☆WALKER for WindowsĬ:\Program Files (x86)\BOOKWALKER\BOOKWALKER for Windows I found a chinese forum thread about this site that has a lot of discussion about that site and comes to the ultimate solution of using Kobo or Amazon instead.
