FIRE PDF · SIRIUSXAI

Sign and validate PDF certificates

Sign a separate PDF copy locally using your own P12/PFX certificate.

Verify cryptographic integrity and validate a certificate chain against trust certificates you explicitly supply. RSA PKCS#12 signing is supported. Offline validation does not establish revocation status or trusted timestamp validity. Existing signed files are not rewritten for additional signing.

Open the workspace

How it works

1. Open your PDF in Fire PDF.
2. Choose Sign and validate PDF certificates from Professional.
3. Review the result and keep your original document.

Local document processing. No Fire PDF account required.