isGenAI.com

AI image detector by platform

LinkedIn AI image detector: the C2PA icon and the download

LinkedIn displays a C2PA icon on images and videos that were cryptographically signed with Content Credentials and shows the credential details on click, so the icon on a post is a reliable platform observation even though the file you download may not keep the manifest.

Platform behaviour as documented or widely reported in October 2026. Updated .

Check the downloaded imageFrequently asked questions
Controlled example PNG file that carries this record: Content Credentials found

test-signed.pngPNG file · controlled example

  1. Signature + IHDR
  2. iTXt XML:com.adobe.xmp
  3. tEXt parameters
  4. tEXt prompt / workflow
  5. tEXt invokeai_metadata
  6. eXIf
  7. caBX C2PA manifestrecord
  8. IDAT pixels
  9. IEND

Content Credentials found

A signed manifest describes how the file was made.

Signer, recording tool, actions and the signature check result are reported separately, so you can weigh each one.

Open the Content Credentials checker →
Content Credentials found: where this record sits inside a PNG file and what the isGenAI report says about it. The picture is a code-drawn controlled example that carries this record; download it and check it yourself.

What LinkedIn documents

LinkedIn’s help centre states that content signed with C2PA Content Credentials is noted with the C2PA icon, that clicking it shows whether AI was used, the app or device, the creator, the issuer and the issue date, and that in select countries a poster can self-attest AI creation for media without credentials, in which case LinkedIn stores authenticity information for the original file without modifying it. LinkedIn also says it cannot yet identify all AI-generated content.

The help page does not state that downloads preserve the credential, so verify the saved file.

What isGenAI shows for a LinkedIn download

The AI image detector reads the file you upload: a C2PA manifest if one survived, the IPTC DigitalSourceType in XMP, AI statements in metadata, saved prompts in the AUTOMATIC1111, ComfyUI and InvokeAI formats, and matching copies by hash and perceptual fingerprint. A platform copy with none of these returns “no evidence found”, and the report says plainly that absence proves nothing about the author.

If the download kept the manifest, the AI image detector and the C2PA checker show the same signer and actions LinkedIn displayed, now validated from the bytes you hold.

What to do instead

Click the C2PA icon and record what LinkedIn shows: issuer, tool and whether AI was used. Then download the media and check it; if the records are gone, the platform observation still stands. Ask the poster for the original export when there is no icon.

The glossary explains what signature validity and signer trust mean in these records.

How to check an image from this platform

  1. Note the platform’s own label or credential icon on the post before you download anything; it does not travel with the file.
  2. Ask the poster for the original file, or trace the first upload. A platform download is a re-encoded copy on most services.
  3. Upload what you have to the AI image detector and read the report. A stripped copy returns “no evidence found” honestly.
  4. Use the matching-copy check: a hash or perceptual fingerprint match can tie the stripped copy to an original that still carried records.

Check the downloaded image

Frequently asked questions

What does the C2PA icon on LinkedIn mean?

The media was cryptographically signed with Content Credentials. Clicking shows whether AI was used, the tool or device, the creator, the issuer and the date, per LinkedIn’s help centre.

Does a LinkedIn download keep Content Credentials?

LinkedIn’s help page does not say so. Download the media and check it in the C2PA checker; the on-platform icon remains a valid observation either way.

What is LinkedIn self-attestation?

In select countries a poster can declare that media was AI-created when it has no credential; LinkedIn then stores authenticity information for the original file without modifying it.

Does no icon mean the image is not AI?

No. LinkedIn states it cannot identify all AI-generated or modified content. Check the original file.

Sources

Where a platform documents its behaviour, the vendor page is linked. Where it does not, the page says the behaviour is reported, not documented.