Verifiera digitala signaturer i dina PDF-filer. Kontrollera certifikatgiltighet, visa signerardetaljer och bekräfta dokumentintegritet. All bearbetning sker i din webbläsare.
Klicka för att välja en fil eller dra och släpp
PDF-dokument
Dina filer lämnar aldrig din enhet.
Upload a trusted X.509 certificate to validate against a custom trust source.
Upload certificate (.pem, .crt, .cer)
Bearbetar...
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.