SynthID Remove, AI Labels and Image Metadata: A Plain-English FAQ

Priya Raman

Questions about "SynthID remove" tools and AI labels on images come up constantly, usually mixed together. They are actually three different things: visible labels added by platforms, metadata written into the file, and invisible watermarks embedded in the pixels. This FAQ separates them so you know what is in your images and what your options are for files you own.

What is SynthID?

SynthID is Google DeepMind's invisible watermark for AI-generated content. It is woven into the pixel data of images produced by certain Google models, so it survives ordinary edits like resizing or light compression. You cannot see it, and it is not stored in the file's metadata.

What is an "AI label" then?

Most AI labels you see on social platforms are triggered by metadata, not pixels. Image files can carry:

EXIF – camera and software details, sometimes GPS location.
XMP and IPTC – descriptive fields, including "digital source type" values that mark an image as AI-generated.
C2PA Content Credentials – a signed record of how the image was created and edited.
PNG text chunks – generators often write the prompt and settings here.

When a platform reads one of these fields, it may add an "AI info" or "Made with AI" tag, even if you only used an AI tool for a small edit.

Can I remove metadata without uploading my photo?

Yes. The free Remove AI Label tool on SynthClear strips EXIF, XMP, IPTC, C2PA and PNG text data entirely in your browser, so the image never leaves your device. It handles JPG, PNG and WEBP files up to 15 MB, up to 20 at a time. This is also a good habit for privacy: it removes GPS coordinates and device details before you share a photo.

What about the SynthID watermark itself?

Because SynthID lives in the pixels, metadata stripping does not touch it. SynthClear also offers a paid SynthID remove service ($1 per image, or $9 per month for 100 credits) for people working with images they own or are authorised to edit, for example a designer cleaning up their own generated drafts before heavy manual retouching.

Do I still need to disclose AI use?

Yes. Removing metadata or a watermark does not change where an image came from. Many platforms, publishers, clients and some laws require you to disclose AI-generated or AI-edited content, and you should follow those rules. These tools are for privacy, file hygiene and fixing incorrect labels on your own work, not for passing off AI images as something they are not.

Quick summary

EXIF / XMP / IPTC: lives in file metadata; removed by metadata stripping: yes
C2PA credentials: lives in file metadata; removed by metadata stripping: yes
PNG prompt text: lives in file metadata; removed by metadata stripping: yes
SynthID: lives in pixels; removed by metadata stripping: no