Remove Adobe DRM from Epub book
2026-04-03
This is requires docker on your machine.
Basically, do this:
➜ docker run -it -v $(pwd):/home/knock -v \
~/.config/knock:/root/.config/knock \
--rm jeffrice/docker-knock ebook.acsm
To explain it a bit further:
- ebook.ascm is the file you get when you buy an epub that has adobe drm in it. The name will vary.
- jeffrice/docker-knock is the magical image that does the magic - thanks jeffrice!
- I think "knock" is part of the magic? I forgot to take notes when I did it last. Sorry.
If done correctly, a drm free epub will turn up in the same folder as the acsm-file.