Überprüfen Sie digitale Signaturen in Ihren PDF-Dateien. Prüfen Sie die Zertifikatsgültigkeit, sehen Sie Unterzeichnerdetails und bestätigen Sie die Dokumentenintegrität. Die gesamte Verarbeitung erfolgt in Ihrem Browser.
Klick hier, um eine Datei auszuwählen oder per Drag & Drop reinziehen
PDF-Dokumente
Deine Dateien verlassen nie dein Gerät.
Upload a trusted X.509 certificate to validate against a custom trust source.
Upload certificate (.pem, .crt, .cer)
Processing...
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.