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NoDRM fb8b003444 Support for Adobe's 'aes128-cbc-uncompressed' encryption (see #242) 3 weeks ago
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DeDRM_plugin Support for Adobe's 'aes128-cbc-uncompressed' encryption (see #242) 3 weeks ago
Obok_plugin Try fixing a Python2 bug in the Obok plugin (#235) 1 month ago
Other_Tools Couple Python 2 fixes in (unsupported) standalone scripts 6 months ago
.gitignore Cleanup 1 year ago
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CHANGELOG.md Support for Adobe's 'aes128-cbc-uncompressed' encryption (see #242) 3 weeks ago
DeDRM_plugin_ReadMe.txt Add support for "hardened" Adobe DRM 11 months ago
FAQs.md fix 2 spelling errors in FAQs.md 6 months ago
README.md Update README, fixes #136 5 months ago
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make_release.py Bugfixes in standalone code for Calibre < 5 / Python 2 1 year ago
obok_plugin_ReadMe.txt Remove stand-alone apps. Only support the two plugins. 3 years ago

README.md

DeDRM_tools

DeDRM tools for ebooks

This is a fork of Apprentice Harper's version of the DeDRM tools. Apprentice Harper said that the original version of the plugin is no longer maintained, so I've taken over, merged a bunch of open PRs, and added a ton more features and bugfixes.

Take a look at the CHANGELOG to see a list of changes since the last version by Apprentice Harper (v7.2.1). This plugin will start with version v10.0.0.

The v10.0.0 versions of this plugin should both work with Calibre 5.x (Python 3) as well as Calibre 4.x and lower (Python 2). If you encounter issues with this plugin in Calibre 4.x or lower, please open a bug report.

Original README from Apprentice Harper

This is a repository that tracks all the scripts and other tools for removing DRM from ebooks that I could find, committed in date order as best as I could manage. (Except for the Requiem tools for Apple's iBooks, and Convert LIT for Microsoft's .lit ebooks.) This includes the tools from a time before Apprentice Alf had a blog, and continues through to when Apprentice Harper (with help) took over maintenance of the tools.

The individual scripts are now released as two plugins for calibre: DeDRM and Obok. The DeDRM plugin handles books that use Amazon DRM, Adobe Digital Editions DRM, Barnes & Noble DRM, and some historical formats. The Obok plugin handles Kobo DRM.

Users with calibre 5.x or later should use release 7.2.0 or later of the tools. Users with calibe 4.x or earlier should use release 6.8.x of the tools.

For the latest Amazon KFX format, users of the calibre plugin should also install the KFX Input plugin from the standard calibre plugin menu. It's also available from the MobileRead thread here: https://www.mobileread.com/forums/showthread.php?t=291290

Note that Amazon changes the DRM for KFX files frequently. What works for KFX today might not work tomorrow.

I welcome contributions from others to improve these tools, from expanding the range of books handled, improving key retrieval, to just general bug fixes, speed improvements and UI enhancements.

I urge people to read the FAQs. But to cover the most common: Do remember to unzip the downloaded archive to get the plugin (beta versions may be just the plugin don't unzip that). You can't load the whole tools archive into calibre.

My special thanks to all those developers who have done the hard work of reverse engineering to provide the initial tools.

Apprentice Harper.