Vérifier les signatures numériques de vos fichiers PDF. Contrôlez la validité du certificat, consultez les informations du signataire et confirmez l’intégrité du document. Tout le traitement s’effectue dans votre navigateur.
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Upload a trusted X.509 certificate to validate against a custom trust source.
Upload certificate (.pem, .crt, .cer)
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Select a digitally signed PDF file from your device
The tool extracts and parses all digital signatures in the document
See signer information, certificate validity, and signature status
This tool validates PKCS#7 digital signatures created with X.509 certificates, the standard format used by most PDF signing tools and certificate authorities.
A self-signed certificate is one where the issuer and subject are the same. While the signature is technically valid, it means the certificate wasn't issued by a trusted Certificate Authority (CA).
No, all processing happens entirely in your browser. Your PDF files never leave your device, ensuring complete privacy and security.