C2PA / Content Credentials is a cryptographically
signed manifest embedded in image files by AI generators —
OpenAI's GPT-Image / DALL·E, Adobe Firefly, Google Imagen, Meta AI,
Midjourney v6+, and others. Platforms like Instagram, LinkedIn,
and TikTok read this manifest on upload to display a "Made with AI"
label automatically.
The manifest lives in metadata containers — not in the
pixel data — so it can be removed losslessly. This tool walks the
file structure and rebuilds it without the provenance chunks.
Image bytes are bit-identical before and after.
What this does NOT remove: invisible pixel
watermarks (Google SynthID, Meta's Stable Signature), perceptual
hash matches, or visual classifiers — those operate on the pixels,
not the metadata.
Stripping provenance from your own AI-generated content is
generally fine. Stripping it from someone else's content to
misrepresent its origin can violate platform Terms of Service and
the EU AI Act (Article 50).