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C2PA Python library

The c2pa-python repository provides a Python library that can:

  • Read and validate C2PA manifest data from media files in supported formats.
  • Create and sign manifest data, and attach it to media files in supported formats.

Features:

  • Create and sign C2PA manifests using various signing algorithms.
  • Verify C2PA manifests and extract metadata.
  • Add assertions and ingredients to assets.
  • Examples and unit tests to demonstrate usage.

Prerequisites​

This library requires Python version 3.10+.

Package installation​

Install the c2pa-python package from PyPI by running:

pip install c2pa-python

To use the module in Python code, import the module like this:

import c2pa

Examples​

See the examples directory for some helpful examples:

  • examples/sign.py shows how to sign and verify an asset with a C2PA manifest.
  • examples/training.py demonstrates how to add a "Do Not Train" assertion to an asset and verify it.

Contributing​

Contributions are welcome! For more information, see Contributing to the project.

License​

This project is licensed under the Apache License 2.0 and the MIT License. See the LICENSE-MIT and LICENSE-APACHE files for details.