DeDRM_tools README

The project's README from github.com/apprenticeharper/DeDRM_tools. As one markdown file: README.md.

No Longer Maintained

I have not had the time to devote to this project in recent years that I would have liked. I am delighted to find that someone else has taken on the task of keeping the tools updated, and making releases. I shall be using noDRM's version of the tools from now on.

[Guide] How to remove DRM Refer to Wiki Page

DeDRM_tools

DeDRM tools for ebooks

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 (version 1), 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: Use ADE 2.0.1 to be sure not to get the new DRM scheme that these tools can't handle. 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.

DeDRM_tools (apprenticeharper/DeDRM_tools)

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15.4K ·GitHub
DeDRM_tools
What is this?DeDRM_tools is a collection of scripts and calibre plugins for stripping DRM protection off ebooks so they can be read, converted, or backed up freely.
Is this a standalone app or a calibre plugin?It is not a standalone program - the code is packaged as two separate plugins, DeDRM and Obok, that run inside the calibre ebook manager.
Do I need calibre installed first, and which version?Yes, calibre is required since these are calibre plugins. Use tools release 7.2.0 or later for calibre 5.x+, or release 6.8.x if you're still on calibre 4.x or earlier.
Is this project still actively maintained?No - the original maintainer stopped working on it and now directs users to noDRM's fork for ongoing updates. Amazon's KFX DRM also changes frequently, so support for it can stop working without warning.
Does it work on Windows, Mac, and Linux?Yes - since it runs inside calibre, which is cross-platform, the plugins work on any OS where calibre itself runs.
What is the difference between the DeDRM and Obok plugins?DeDRM handles Amazon DRM, Adobe Digital Editions (version 1) DRM, Barnes and Noble DRM, and some historical formats, while Obok is specifically for removing Kobo's DRM.
Do I need anything extra for Kindle's KFX format?Yes, for the latest Amazon KFX ebooks you also need to install the separate KFX Input plugin from calibre's standard plugin menu.
Is there a trick to keep Adobe DRM removal working?Use Adobe Digital Editions (ADE) version 2.0.1 - newer ADE releases introduce a DRM scheme these tools cannot handle.
Why did the original author stop updating this repo?He says he no longer has the time he'd like to devote to the project and is happy that noDRM has taken over keeping the tools updated and releasing new versions.
What are similar projects?kcc, calibre-web, calibre, zlib, koreader, flyingmouse-format, xpra, readest
Which topics is it in?calibre, kobo, ebook, reverse-engineering, encryption, deprecated, utility, plugin, desktop, gui, tool, python
Creator
apprenticeharper
Size
24.3 MB
Stars
15.4K
Updated
CommitNov 29Releasev7.2.1Apr 11
Age
11y
Commits · 90 Days