Verify Signature
Upload a PDF for signature analysis. Review integrity, certificate trust and validation warnings; acceptance can differ between readers and organisations.
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or click to select your signed document
Interpret a PDF signature report
Integrity, certificate trust and authority differ
Verification checks embedded signatures using the document and validation information available to the service. Read the complete report rather than treating one label as proof of authenticity in every context.
- Confirm that uploading the document is permitted.
- Review each signature, its certificate and all warnings.
- Check whether later changes are reported.
- Compare important results with the recipient's reader or required validation service.
What verification cannot guarantee
A technically valid signature is not proof that the document's statements are true or that a signer had authority to make them. Trust roots and validation policies differ. This service does not guarantee recognition of every government or commercial certificate and does not replace legal advice.
See the processing overview, Privacy Policy and Terms of Service for data handling and service limitations.
Smart Workspace
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