eMark

eMark is a free and open-source PDF signing and verification application – a powerful Adobe Reader alternative that enables you to securely sign, verify, timestamp, and protect PDF documents using:

🔑 USB tokens and HSM (PKCS#11)
📜 PKCS#12/PFX certificates
💻 Windows certificate store

Works seamlessly on Windows, Linux, and macOS with an Adobe Reader-like interface featuring professional signature verification capabilities. Built for individuals, enterprises, and government organizations.

Features

Adobe Reader–like signature interface
Verify digital signatures in PDF documents
Validate certificate chain and trust status
Supports USB tokens and HSM (PKCS#11)
Sign using PFX/PKCS#12 files
View detailed signer and certificate info
RFC 3161 timestamp and LTV support
Cross-platform (Windows, Linux, macOS)
Open source and free (AGPL v3.0)
Simple PDF signing

Project Samples

Signature Properties with verification status

Project Activity

See All Activity >

License

Affero GNU Public License

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eMark Web Site

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Languages

English

Intended Audience

Developers, End Users/Desktop, Financial and Insurance Industry, Government, Legal Industry, System Administrators

User Interface

Java Swing

Programming Language

Java

Related Categories

Java Cryptography Software, Java PDF Editors, Java Electronic Signature Software

Registered

2025-10-14

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