Firefly’s characteristic trail
Firefly’s signature is Content Credentials (C2PA): cryptographically signed metadata that platforms and verifiers read to mark the image as generated or edited with Adobe AI. Firefly also usually writes XMP/IPTC fields with authorship and usage data. All of that lives in the file’s metadata.
How to clean it
1. Run the image through the checker to see the C2PA manifest and the XMP/IPTC blocks. 2. Use /c2pa to remove the Content Credentials and /xmp / /exif for the rest. 3. Download the clean file; it is not recompressed and the pixels stay the same.
Supported formats: JPEG, PNG, WebP, AVIF, TIFF and HEIC.
What does not change (honesty)
Removing Content Credentials deletes the label inside your file, but Adobe may keep provenance records in its own ecosystem (for example tied to your account), separate from your copy. And as always: we work on metadata and credentials, not on the pixels, so we do not disable any possible pixel-level mark. Cleaning C2PA is not the same as making the image undetectable.
Privacy
The image is uploaded to our server, processed and deleted after 5 minutes. It is not used for training, we add no watermark, no account is required and the service is free.