c2pa-python

C2PA Python library

The c2pa-python repository implements Python bindings for the Content Authenticity Initiative (CAI) SDK. It enables you to read and validate C2PA manifest data from and add signed manifests to media files in supported formats.

NOTE: Starting with version 0.5.0, this package has a completely different API from version 0.4.0. See Release notes for more information.

WARNING: This is an prerelease version of this library. There may be bugs and unimplemented features, and the API is subject to change.

Additional documentation:

• Using the Python library
• Release notes
• Contributing to the project

Installation

Install from PyPI by entering this command:

pip install -U c2pa-python

This is a platform wheel built with Rust that works on Windows, macOS, and most Linux distributions (using manylinux). If you need to run on another platform, see Project contributions - Development for information on how to build from source.

Updating

Determine what version you've got by entering this command:

pip list | grep c2pa-python

If the version shown is lower than the most recent version, then update by reinstalling.

Reinstalling

If you tried unsuccessfully to install this package before the 0.40 release, then use this command to reinstall:

pip install --upgrade --force-reinstall c2pa-python

Supported formats

The Python library supports the same media file formats as the Rust library.

License

This package is distributed under the terms of both the MIT license and the Apache License (Version 2.0).

Note that some components and dependent crates are licensed under different terms; please check the license terms for each crate and component for details.

Contributions and feedback

We welcome contributions to this project. For information on contributing, providing feedback, and about ongoing work, see Contributing.