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What is an AI watermark?
An AI watermark is a hidden or visible mark added to AI-made content so it can be recognized as AI-generated.
- Category Safety & law
- Also called watermark, watermarking
- Updated 20 Oct 2026
AI watermark, explained simply
A watermark is a sign that says where something came from. For AI, it can be a faint logo or a hidden pattern in the pixels or words.
The hope is that tools can check the mark and tell if a picture or text came from AI.
It isn't perfect. Marks can be cropped or removed, and not every tool adds one.
On ITG Now, our daily AI news stories sometimes cover watermarking plans and labels for AI-made images and video.
Related terms
Content CredentialsDeepfakeText-to-imageText-to-videoAI regulationGenerative AI
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Questions people ask about AI watermark
Can an AI watermark be removed?
Sometimes. Visible marks can be cropped and hidden ones can be damaged by edits. That is why researchers keep improving them.
AI watermark vs content credentials: what is the difference?
A watermark is a mark placed in the content. Content credentials are a record attached to the file that lists how it was made.
Do all AI tools add watermarks?
No. Some do and some don't. Rules in some places may require labels in the future.