Version 6.5.3 of the tools is now available. Please update to the latest version if you are having issues.
DeDRM_tools_6.5.3.zip can be downloaded from
Changes in 6.5.3:
- For the Kindle tools, an attempt has been made to give an explicit error message for the new KFX format ebooks.
- For the Kobo tools, incorrect linux support has been removed, and the decryption of ePubs with unusual file encodings has been improved.
To leave a comment, see the previous post: DRM Removal Tools for eBooks.