Verify PDF signature checks the digital signature in a PDF, such as e-Aadhaar, DigiLocker certificates, GST returns or e-signed agreements. It shows who signed it, when, and whether the document has been changed since.

When to use Verify PDF signature

• Check that an e-Aadhaar PDF is genuine when Adobe says "validity unknown"
• Confirm a digitally signed certificate or agreement has not been edited
• See who signed a PDF and which authority issued their certificate

How to use Verify PDF signature

1. Add the signed PDF.
2. The result appears at once for every signature in the file.

Questions about Verify PDF signature

Is my file uploaded?

No. Everything happens inside your browser, on your phone or computer. Nothing is sent to our servers.

Why does Adobe show "validity unknown" for Aadhaar?

Adobe does not trust India's root certificate by default. The signature can still be genuine, and this tool checks it.

Does it check revocation?

No. It checks the signature and the certificate chain inside the file, on your device, without contacting the certifying authority.

Is it safe?

Yes. Verify PDF signature works inside your browser. Your files are not uploaded anywhere, so nobody else can see them, and there are no waiting queues.

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