DeDRM Adobe Digital Edition Books

0-README.txt

Convenient DeDRM Scripts
-------------------------

**NOTE**: read https://blog.quaintous.com/2021/02/16/remove-drm-from-ebooks/ to find out what this gist is good for.

* ./init.sh:	extracts Adobe Digital Editions private key and required files to DeDRM.
* ./dedrm:	removes DRM from given ebook (pdf/epub)

If you are using this for the first time, make sure that you have authenticated your Adobe Digital Editions (ADE) and run './init.sh'. Import any DRM-protected file into ADE and run 'dedrm.sh':

./dedrm.sh /PATH/TO/EBOOK

It uses the already extracted private key under "config/adobekey.der" and two python scripts (for epub and pdf extensions respectively) which were originally part of the DeDRM Calibre plugins:

https://github.com/apprenticeharper/DeDRM_tools

The jailbroken ebook is now in the root directory!

dedrm.sh

#!/bin/bash

err () {
	>&2 echo "$1"
	exit 1
}

main() {
	local readonly KEY="./conf/adobekey.der"
	if [[ ! -r "${KEY}" ]]; then
		err "Private Adobe Key not found!"
	fi
	
	local readonly LIB="./lib"
	if [[ ! -d "${LIB}" ]]; then
		err "DeDRM python scripts not found!"
	fi
	
	if [[ ! -r "$1" ]]; then
		err "No file given to DeDRM!"
	fi
	
	local readonly FILENAME="$(basename -- "$1")"
	local readonly EXT="${FILENAME##*.}"
	
	local libTarget="${LIB}/inept${EXT}.py"
	
	python3 "${libTarget}" "${KEY}" "$1" "${FILENAME}"
}

main "$@" || exit 1

init.sh

#!/bin/bash

set -e

main() {
	local readonly LIBPATH="$(pwd)/lib"
	local readonly CONFPATH="$(pwd)/conf"
	
	mkdir -p "${LIBPATH}"
	mkdir -p "${CONFPATH}"
	
	local winePrefix="${WINEPREFIX}"
	if [[ -z "${winePrefix}" ]]; then
		echo "WINEPREFIX not given, using defualt ('~/.ade')..."
		export WINEPREFIX=~/.ade
	fi
	
	echo "Downloading necessary scripts..."
	wget --continue -i "sources.txt" -P "${LIBPATH}"
	
	echo "Trying to extract Adobe private Key..."
	local readonly KEYPATH="${CONFPATH}/adobekey.der"
	if [[ -r "${KEYPATH}" ]]; then
		echo "Private key found under '${CONFPATH}'".
	else
		wine python "${LIBPATH}/adobekey.py" "${CONFPATH}/adobekey.der"
	fi
	
}

main "$@" || exit 1

sources.txt

https://raw.githubusercontent.com/apprenticeharper/DeDRM_tools/v6.8.1/DeDRM_plugin/adobekey.py
https://raw.githubusercontent.com/apprenticeharper/DeDRM_tools/v6.8.1/DeDRM_plugin/ineptpdf.py
https://raw.githubusercontent.com/apprenticeharper/DeDRM_tools/v6.8.1/DeDRM_plugin/ineptepub.py