Verifica le firme digitali nei tuoi PDF. Controlla la validità del certificato, visualizza i dati del firmatario e conferma l'integrità del documento. Tutto avviene nel tuo browser.
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PDF Documents
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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
Review signer information, certificate validity status, and signature verification results
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.