Version 6.5.1 of the tools is now available. Please update to the latest version if you are having issues.
DeDRM_tools_6.5.1.zip can be downloaded from
Three minor changes in 6.5.1:
- Removed debugging dialog from Mac App.
- Updated plugin version number correctly.
- No alterations to DRM-free PDFs when importing to calibre.
Changes in 6.5.0:
- A fix for some more previously unknown Topaz tags.
- A big update to the Macintosh application, so that keys are only retrieved when necessary, and all possible keys will be retrieved and tried.
To leave a comment, see the previous post: DRM Removal Tools for eBooks.