This content originally appeared on DEV Community and was authored by Pintu Prajapati
eMark - PDF Signing Application
📝 Overview
eMark is a robust, cross-platform desktop application for digitally signing PDF documents with support for multiple signing methods. It provides a user-friendly interface for secure document signing while maintaining the highest security standards.
✨ Features
-
Multiple Signing Methods
- Windows Certificate Store integration
- PKCS#11/HSM support (multi-device support)
- PFX/PKCS#12 file support
-
Cross-Platform Support
- Executable JAR works on Windows, macOS, and Linux
- Native installers available for:
- Windows (
.exe) - Linux Ubuntu/Debian (
.deb)
- Windows (
- macOS installer coming soon 🚀
- Consistent UI experience across platforms
-
Advanced Security
- Support for hardware security modules (HSM)
- Timestamping support
- Password-protected PDF support
- LTV (Lightweight Trust Verification) support
- Timestamp Authority (TSA) support
-
User-Friendly Interface
- Modern, simple but powerful dark-themed UI
- Visual signature placement and customization
- Signature preview and configuration
- Document preview
-
Open Source
- Open source codebase available for customization and contribution
🚀 Getting Started
📦 Prerequisites
Before installing or running eMark, make sure you have:
-
Java SE 8 (JDK or JRE) installed
- ⚠️ Exactly Java 8 is required
- Not compatible with Java 7 or Java 9+
- Windows: Download Java
- macOS:
brew install openjdk@8 - Linux:
sudo apt-get install openjdk-8-jdk
-
A supported operating system:
- Windows 7 or later (64-bit recommended)
- Linux Ubuntu 18.04+ / Debian
- macOS (JAR only, installer coming soon)
A valid digital signing certificate (Windows Keystore, PKCS#11 token, or PKCS#12/PFX file)
Installation
Option 1: Download Latest Release
- Download the latest release from the Releases page
- Select the appropriate installer for your operating system (Windows, macOS, or Linux)
- Run the installer and follow the on-screen instructions
Note: Each release includes platform-specific installers for easy setup on your operating system.
Option 2: Build from Source
git clone https://github.com/code-muni/eMark.git
cd eMark
mvn clean package
java -jar target/eMark-1.0-SNAPSHOT.jar
🖥 Usage
Signing a PDF Document
- Launch eMark
- Click "Open PDF" and select your document
- Click "Begin Sign" and select the signing area
- Choose your certificate from the list
- Enter your certificate password if required
- Click "Sign" and choose where to save the signed document
Supported Operations
- Open PDF: Open and view PDF documents
- Sign Document: Add digital signatures to PDFs
- Save As: Save signed documents with a new filename
- Settings: Configure application preferences and security settings
🛠 Troubleshooting
Common Issues
Java Version Error
- Ensure you have Java 8 or later installed
- Run
java -versionto check your Java version
PDF Loading Issues
- Ensure the PDF is not corrupted
- Check if the PDF is password protected and provide the correct password
Certificate Issues
- Ensure your certificate is properly installed
- Check certificate expiration date
- Verify certificate trust chain
🌐 Explore eMark Online
You can also check out the live GitHub Pages site for eMark here:
This page contains documentation, screenshots, download links, and guides for getting started quickly.
Report a Bug / Request a Feature
Found a bug or have a feature idea? We'd love to hear about it!
- Search existing issues to avoid duplicates
- Create a new issue using the appropriate template:
- Fill in the template with as much detail as possible
- Submit the issue and we'll review it as soon as possible
📧 Contact
For support or queries, please open an issue on our GitHub repository.
Made with ❤️ by CodeMuni
This content originally appeared on DEV Community and was authored by Pintu Prajapati
Pintu Prajapati | Sciencx (2025-08-20T16:44:23+00:00) 🖊️ Digitally Sign PDFs Securely with eMark – Cross-Platform & Free 🚀. Retrieved from https://www.scien.cx/2025/08/20/%f0%9f%96%8a%ef%b8%8f-digitally-sign-pdfs-securely-with-emark-cross-platform-free-%f0%9f%9a%80-3/
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