Signatures

Signature commands inspect or remove digital signatures present in a PDF.

pdfcpu’s open source signature handling focuses on PDF signature integrity:

• signed byte ranges
• CMS/PKCS#7 processing
• signer and certificate extraction
• best-effort checks against the configured local certificate store and available revocation information

It reports trust-related evidence such as certificate chains, timestamps, revocation responses, DSS data, and PAdES baseline indicators where available.

This is not a legal-validity, eIDAS, enterprise policy, or full long-term validation statement.

Usage

pdfcpu signatures validate inFile [flags]
pdfcpu signatures remove inFile [ outFile ] [flags]

Common Flags