Sign

Upload an image, configure a manifest, and sign it using a test certificate.

1Upload

2Configure

3Review

4Result

Step 1 · Upload Asset

Drop a file here or click to browse

JPEG, PNG, WEBP, TIFF, HEIC, MP4 — max 100 MB · or paste from clipboard

How signing works

Upload an image or capture one with your webcam, then embed a C2PA manifest using a test certificate and verify the result.

Supported formats: JPEG, PNG, WEBP, TIFF, HEIC.
Max size: 100 MB.
Use Webcam to demonstrate the capture-to-credential flow.
Webcam captures auto-set the c2pa.created action with digitalCapture source and self-asserted device metadata.
You can also start from a previously verified asset.

Step 1/4