DRMLibre

A standalone, single-binary command-line tool (written in Rust, no runtime dependencies) for removing DRM from Amazon Kindle and Adobe Digital Editions ebooks. The decryption logic is ported from DeDRM_tools; DRMLibre is therefore licensed GPL-3.0-or-later. See CREDITS.md.

Use DRMLibre only on books you own, to exercise your own rights (format shifting, backup, accessibility). Respect the law in your jurisdiction.

Status

Under active development. Supported / planned formats:

Capability	Status
Adobe ADEPT EPUB (+ hardening, B&N PassHash, font de-obfuscation)	✅ done
Kindle MOBI / AZW / AZW3	✅ done
Adobe key auto-extraction from installed ADE (Windows, DPAPI)	✅ done
Kindle-for-PC key (.kinf) / Android / macOS auto-extraction	planned
Kindle KFX-ZIP	planned
Adobe PDF, Kindle Topaz, eReader, Kobo, LCP	out of scope

On Windows with Adobe Digital Editions activated, ADEPT EPUBs decrypt with no extra arguments — the key is extracted from the local install and cached in the config for later offline use.

Usage

drmlibre remove <files...> [options]   # remove DRM
drmlibre passhash ...                   # generate/extract Adobe/B&N PassHashes
drmlibre config                         # summarize keys in the config file

Common remove options: -o/--output, --outputdir, -f/--force, --overwrite, --serial, --pid, --key, --passphrase, --android-backup, --config (default ./drmlibre.toml).

Examples:

# Adobe EPUB, using an exported Adobe key:
drmlibre remove "My Book.epub" --key adobe.der -o "My Book (no DRM).epub"

# Kindle eInk book, using the device serial:
drmlibre remove "My Book.azw" --serial 0123456789ABCDEF

Architecture

A Cargo workspace:

• crates/drmlibre-core — the UI-agnostic engine (format detection, key management, decryptors). No printing or process exits; everything is a Result and progress goes through tracing. This is what a future GUI links.
• crates/drmlibre-cli — the drmlibre binary (argument parsing, file I/O policy, exit codes).

Building

cargo build --release      # binary at target/release/drmlibre
cargo test                 # run the test suite