Проверить цифровые подписи in your PDF-файлы. Check certificate validity, view signer details, and confirm document integrity. All processing happens in your browser.
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PDF документы
Ваши файлы безопасно обрабатываются прямо в браузере.
Upload a trusted X.509 certificate to validate against a custom trust source.
Загрузите сертификат (.pem, .crt, .cer)
Обработка...
Select a digitally signed PDF file from your device
The tool extracts and parses all digital signatures in the document
Узнайте информацию о подписавшем, срок действия сертификата и статус подписи
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-файлы never leave your device, ensuring complete privacy and security.