ShopLinks Sign

Check a signed PDF

Find out if a PDF is exactly the document that was signed, with nothing changed afterwards.

Choose the signed PDF

or drop files here

The file stays on this device. Only its fingerprint is checked.

How the check works

Your browser calculates the file's SHA-256 fingerprint. The PDF itself is not uploaded.
We look for a completed ShopLinks Sign document with the same fingerprint.
The last pages of a signed PDF are its certificate of completion: who signed, when, and how each person confirmed their e-mail. PDF readers such as Adobe Acrobat also show its digital seal.

Want to send your own document for signing? Open ShopLinks Sign.

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