Content Seal, Video Seal and Pixel Seal: Meta's Invisible Watermarks

You download a Meta AI image and want to know whether it contains a hidden watermark. Searching for “Seal” brings up several projects. The useful question is which one applies to your file.

Which name means what?

• Content Seal: Meta’s broader watermarking initiative, covering different media and implementations.
• Video Seal: an open research project for marking and detecting watermarks in existing videos and images.
• Pixel Seal: related research on invisible image and video watermarking. It is not another name for every Meta watermark.

The public repositories explain how the research models work. They do not establish that a downloaded Meta AI file can be checked with any model carrying the Seal name.

Research code and product exports

Meta describes a custom Content Seal implementation for Muse Image. Keep that production system separate from the weights and demonstrations published for researchers. A research detector returning no result may simply be the wrong detector.

A visible logo and an “AI info” label are different again. One is part of the displayed picture. The other is a platform explanation that can use several signals. Neither tells you which hidden watermark a file contains.

A useful comparison starts with the source

1. Keep the direct export and note which product created or edited it.
2. Look for that product’s current verification instructions.
3. Check the original before comparing a processed copy.
4. Record the tool, date and reported signal alongside the files.

For example, a creator comparing two product images needs both the visual review and a compatible provenance check. A generic “AI probability” score does not decode a Seal watermark.

Where MetaGhost fits

MetaGhost’s invisible watermark remover provides an online image trial. Desktop workflows also process video. Test a representative file and inspect fine details. The Seal documentation describes Meta’s technology, not an independent compatibility test of MetaGhost.

For the broader picture, read the invisible watermark overview. If the file was filmed rather than generated, see how camera footage can acquire a watermark.