Does Removing Metadata Remove SynthID?
Last updated · 5 min read
Quick answer
No. SynthID is an invisible watermark inside the image pixels. It is not metadata, so removing EXIF, XMP, IPTC or Content Credentials does not remove it. WipePic removes the metadata and leaves the pixels as they are.
Metadata and SynthID are two different things
Metadata is data that a file stores next to the pixels: EXIF, XMP, IPTC, PNG text and C2PA Content Credentials. A tool can remove it without changing the picture.
SynthID works in another way. Google DeepMind says SynthID "embeds digital watermarks directly into AI-generated images, audio, text or video" (DeepMind SynthID page, 2026). The signal is part of the content itself.
| File metadata | SynthID watermark | |
|---|---|---|
| Where it lives | In the file, beside the pixels | In the pixels |
| Removed by WipePic | Yes | No |
| Lost by a screenshot or a format change | Yes, usually (OpenAI Help Center, 2026) | Designed to survive common changes. Heavy cropping or compression can break it (OpenAI Help Center, 2026) |
What SynthID is
Google introduced SynthID in 2023. In October 2026 Google said it had watermarked more than 180 billion images and videos and 240,000 years of audio. Google designed the image watermark to stand up to cropping, filters and lossy compression (DeepMind SynthID page, 2026).
SynthID is no longer only a Google tool. On May 19, 2026, OpenAI announced that it adds SynthID to images made with ChatGPT, Codex or the OpenAI API. Google lists OpenAI, NVIDIA and Kakao as partners whose content its detector can check.
Why removing metadata does not remove it
The design is deliberate. OpenAI explains it in its Help Center (2026): metadata can carry detail, but platforms, editors and file conversions may remove it. A watermark carries less detail, but it lives in the image, so "if metadata is removed from a file, an embedded watermark may still provide a signal".
When you remove EXIF, XMP, IPTC or a C2PA manifest, you change the data around the image. The pixels stay the same, and so does the watermark in them.
How SynthID is checked
- Gemini app: since November 2025 you can upload an image and ask if Google AI made or edited it (Google, 2025).
- Search and Chrome: Google added the same check to Search in May 2026 and said Chrome would follow (Google, 2026).
- SynthID Detector: a web portal that Google first gave to testers in May 2025. On October 7, 2026, Google opened it to everyone, in English (Google, 2026).
- OpenAI Verify: a page that looks for OpenAI C2PA data and OpenAI SynthID signals (OpenAI, 2026).
These tools find only the signals of the companies that support them. OpenAI says its tool does not detect content from other AI models. A negative result is not proof that a person made the image.
What WipePic removes and what it does not
WipePic removes the hidden data in the file, including these AI-related items:
- AI labels such as the XMP DigitalSourceType field.
- PNG prompts and parameters, for example the text chunks of Stable Diffusion and ComfyUI.
- Content Credentials (C2PA manifests).
- Location, camera and phone details, dates, author and copyright, editing history and embedded thumbnails.
WipePic does not re-encode the image, so the pixels do not change. That is why a SynthID watermark is still there after cleaning. WipePic cannot remove pixel watermarks such as Google SynthID, visible content or faces.
To see what a file holds, use the AI metadata checker. To clean it, use Remove AI Metadata or Remove Content Credentials.
Why people still clean the metadata
The metadata of an AI image can hold your prompt, the name of the software and the editing history. If you edit a real photo, the file can also hold GPS data and camera details. Cleaning the file gives you control over what you share.
It does not hide the AI origin from a tool that reads the watermark. Many platforms ask you to label AI images, so follow their rules when you post.
Sources
Google DeepMind, SynthID (2026); Google, SynthID Detector for everyone (October 2026); Google, image verification in the Gemini app (November 2025); Google, tools to understand how content was created (May 2026); OpenAI, Advancing content provenance (May 2026); OpenAI Help Center, Provenance signals (2026).
Questions
Does WipePic remove SynthID?
No. WipePic removes metadata and does not change the pixels. SynthID is part of the pixels, so it stays in the file. WipePic cannot remove pixel watermarks.
Can the SynthID Detector still read a file after I remove its metadata?
Yes, if the watermark is still in the pixels. Metadata removal does not touch them. Detectors read the pixels, not the file header.
Is SynthID the same as C2PA Content Credentials?
No. C2PA Content Credentials are signed metadata stored in the file. SynthID is an invisible watermark stored in the pixels. A file can have one, both or neither.
Does "no SynthID found" mean a photo is real?
No. A detector only finds the watermarks of the tools that add them. Google, OpenAI and other companies say a missing signal does not prove that a person made the image.
Does SynthID store my name or my prompt?
OpenAI states that the provenance signals in its images do not include details about the user, the organization or the prompt. For other tools, read their own documentation.
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