Verify Signature
Upload a PDF signed with this site's Sign PDF tool and re-check its embedded certificate: who signed it, when, and whether the document's text content still matches the fingerprint recorded at signing time. This detects edits made after signing — it does not verify the signer's real-world identity.
By The Paper Room Editorial Team — PDF Tools
Frequently asked questions
What does the signature verifier check?▼
It verifies whether a signature certificate issued by The Paper Room is present and intact. It checks the SHA-256 fingerprint, signer identity, signing timestamp, and whether the document has been modified after signing.
Can it verify signatures from other e-sign providers?▼
This tool specifically verifies The Paper Room's own signature certificates. For documents signed with Adobe Sign, DocuSign, or other providers, use their respective verification tools or Adobe Acrobat.
What happens if the document was modified after signing?▼
The verifier will flag that the document's integrity check failed, meaning the content has changed since the signature was applied. The signature itself may still be readable, but it no longer guarantees the document's authenticity.