Electronic document signing with ARX CoSign
Cross-platform client for signing PDF documents via the ARX CoSign
SOAP API (OASIS DSS standard). Works on macOS, Linux, and Windows
without requiring a Windows-only CoSign client.
Features:
- Embedded PDF signatures with visual appearance
- Detached CMS/PKCS#7 signatures
- Pre-computed SHA-1 hash signing
- Automatic signer identity discovery from server or signed PDFs
- Secure credential storage via system keychain