Remove SynthID Watermark from Video

SynthID is Google DeepMind's invisible AI watermarking technology. It embeds imperceptible signals directly into AI-generated content — including every frame of video produced by Google Veo and Google Flow. SynthID is designed to be invisible to the human eye but detectable by Google's verification tools. It's one part of the C2PA (Content Provenance and Authenticity) standard that tags AI outputs with their origin.

SynthID watermarks in video are propagated through C2PA metadata — a provenance data container embedded in the file structure. Our tool strips this metadata layer entirely from the video file. This removes the SynthID attribution data without re-encoding or altering the video pixels themselves.

C2PA (Coalition for Content Provenance and Authenticity) is an industry standard for embedding content origin information into media files. AI platforms like Google Veo attach C2PA metadata to every output — recording when the video was generated, which AI model created it, and embedding SynthID attribution data. This tool removes that metadata layer.

No — and importantly, you should NOT add any visible masks. SynthID is invisible; it has no visual region. The C2PA removal checkbox only appears when no masks are added. Just upload your video, leave the mask area empty, check "Remove only hidden watermarks (C2PA metadata)", and click Remove Watermark.

No. C2PA metadata removal is non-destructive — it strips the metadata container without touching the video frames or audio. Your video remains identical in resolution, bitrate, frame rate, and visual quality. The only change is the removal of the provenance metadata.

Google Veo (all versions including Veo 3), Google Flow, and other Google AI video tools embed SynthID and C2PA metadata in their outputs. This tool works on any video file containing C2PA metadata, regardless of which AI platform generated it.

Yes — but that's a separate operation from SynthID removal. For visible logo removal, use the Veo Watermark Remover page which has presets for all Veo logo positions. For hidden watermarks only (no visible logo present), use this page. You can also combine both: add visible masks AND enable C2PA removal on the main watermark remover.