This repository contains comprehensive documentation for GroupDocs.Signature - a powerful digital signature API that enables developers to electronically sign documents across 90+ file formats. Our documentation provides detailed guides, API references, code examples, and best practices for implementing digital signatures in your applications.
GroupDocs.Signature is a versatile document signing solution that supports multiple signature types and document formats:
- Multiple Signature Types: Digital certificates, text signatures, image signatures, QR codes, barcodes, stamps, and form fields
- 90+ Document Formats: PDF, Microsoft Word (DOCX, DOC), Excel (XLSX, XLS), PowerPoint (PPTX, PPT), and many more
- Cross-Platform Support: Available for .NET, Java, Node.js, Python
- Cloud & On-Premise: Both cloud-based REST API and on-premise library solutions
- Advanced Features: Signature verification, search functionality, document preview, and metadata handling
Word Processing: DOC, DOCX, DOCM, DOT, DOTX, DOTM, RTF, TXT, ODT, OTT Spreadsheets: XLS, XLSX, XLSM, XLSB, XLT, XLTX, XLTM, CSV, ODS, OTS Presentations: PPT, PPTX, PPTM, PPS, PPSX, PPSM, POT, POTX, POTM, ODP, OTP Portable: PDF Images: JPEG, PNG, BMP, GIF, TIFF, SVG, WEBP And many more formats
This repository is organized to provide easy access to all GroupDocs.Signature resources:
- Getting Started Guides: Quick setup and installation instructions
- Developer Guide: Comprehensive tutorials and code examples
- API Reference: Complete API documentation with method descriptions
- Release Notes: Latest updates, new features, and bug fixes
- Migration Guides: Upgrading between versions
- .NET Documentation: C# examples, NuGet installation, framework compatibility
- Java Documentation: Maven integration, J2SE requirements, code samples
- Cloud API Documentation: REST API endpoints, authentication, SDK guides
- Demo Applications: Live examples and showcase projects
- Digital Signatures: X.509 certificates, timestamping, validation
- Electronic Signatures: Text, image, stamp, and handwritten signatures
- Barcode & QR Code: Generate and embed codes in documents
- Form Field Signatures: Interactive form elements and data collection
- Document Security: Encryption, access control, and compliance features
Install-Package GroupDocs.Signature<dependencies>
<dependency>
<groupId>com.groupdocs</groupId>
<artifactId>groupdocs-signature</artifactId>
<version>24.7</version>
</dependency>
</dependencies># Install SDK for your preferred language
npm install @groupdocs/groupdocs.signature # Node.js
pip install groupdocs-signature-net # Python// Sign a PDF document with digital certificate
using (Signature signature = new Signature("sample.pdf"))
{
DigitalSignOptions options = new DigitalSignOptions("certificate.pfx")
{
Password = "password123",
Reason = "Document approval",
Location = "New York"
};
SignResult result = signature.Sign("signed.pdf", options);
}- Contract Management: Legally binding electronic signatures for contracts and agreements
- HR Documentation: Employee onboarding, policy acknowledgments, and forms
- Financial Services: Loan applications, account opening forms, and compliance documents
- Healthcare: Patient consent forms, medical records, and HIPAA compliance
- Legal Industry: Document authentication, case files, and court submissions
- Document Workflows: Automated signing processes in business applications
- Web Applications: Browser-based document signing interfaces
- Mobile Apps: On-the-go document signing capabilities
- Enterprise Systems: Integration with existing document management systems
- API Integration: Seamless embedding in custom applications
GroupDocs.Signature implements industry-standard security measures:
- PKI Infrastructure: Support for X.509 digital certificates
- Timestamping: RFC 3161 compliant timestamp servers
- Encryption: AES encryption for sensitive data
- Compliance: EU eIDAS, US ESIGN Act, and other international standards
- Audit Trails: Comprehensive logging and verification capabilities
- Easy Integration: Simple APIs with extensive documentation
- Flexible Licensing: Various licensing options for different project scales
- Cross-Platform: Consistent functionality across multiple platforms
- Active Support: Dedicated support team and community forums
- Regular Updates: Continuous improvements and new features
- Cost-Effective: Reduce paper-based processes and manual workflows
- Legally Binding: Compliant with international e-signature regulations
- Time-Saving: Accelerate document approval processes
- Scalable: Handle thousands of documents efficiently
- Professional: Enterprise-grade reliability and performance
- Product Documentation - Complete developer guides
- API Reference - Detailed API documentation
- Live Demos - Try features online
- Blog Articles - Tips and tutorials
- .NET Examples - C# code samples
- Java Examples - Java implementations
- Cloud SDKs - Multi-language cloud SDKs
- Demo Applications - Complete demo projects
- Support Forum - Community discussions
- Paid Support - Priority technical support
- Contact Sales - Licensing inquiries
- 30-Day Free Trial: Full-featured evaluation without limitations
- Free Tier: Cloud API with monthly quota for small projects
- Temporary License: Extended evaluation for enterprise assessment
- Free Consultation: Architecture review and implementation guidance
- Online Signature Tool - Free web-based signing
- Document Viewer - Preview documents before signing
- Format Converter - Convert between document formats
GroupDocs.Signature offers flexible licensing options:
- Developer License: Single developer, unlimited applications
- Site License: Unlimited developers within one physical location
- Global License: Worldwide usage rights for large organizations
- OEM License: Redistribute with your applications
- Cloud API: Pay-per-use and subscription plans
| Version | .NET Framework | .NET Core/.NET | Java | Release Date |
|---|---|---|---|---|
| 25.6 | 4.6.2+ | 2.0+ | 8+ | June 2025 |
| 25.1 | 4.6.1+ | 2.0+ | 8+ | January 2025 |
| 24.12 | 4.6.1+ | 2.0+ | 8+ | December 2024 |
GroupDocs.Signature is designed for high-performance scenarios:
- Document Processing: Handle large files (100MB+) efficiently
- Batch Operations: Process multiple documents simultaneously
- Memory Optimization: Minimal memory footprint for server applications
- Concurrent Processing: Thread-safe operations for multi-user environments
- Caching: Built-in caching for improved response times
- Download and install GroupDocs.Signature for your platform
- Obtain a temporary license for evaluation
- Review the Quick Start guide for your technology stack
- Explore code examples in your preferred programming language
- Test with your document formats and signature requirements
- Join the community forum for ongoing support
Transform your document workflows with powerful electronic signature capabilities. Start your free trial today!
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