Verify a signed document
Upload a PDF sealed by Pactumize Sign and we will check the embedded cryptographic signatures against Pactumize's public certificate. The verifier proves that:
- The document was signed by the holder of the Pactumize Sign private key;
- Not a single byte of the covered content has been modified since the seal was applied.
Files are processed in memory and never stored. No login required.
Upload a document
Pactumize Sign certificate
Verification on this page uses this exact certificate as the only trust anchor. If the signature doesn't match this key, the result will say Not verified — no exceptions, no fallbacks.
Want to verify offline?
You don't have to trust this page. Adobe Acrobat Reader will verify the signature on any sealed document you open (look for the “Signature Panel” at the top of the window). The signing certificate is self-signed by design, so Acrobat will warn about chain validity — what matters is the green check on the signature itself and the fingerprint matching the one above.