Secure PDF

/n softwarePDF Tools.NETJavaJavaScriptObjective-C LibraryVCL ComponentWindows DLLC++ / MFC Class Library
Version 2026 (Oct 22, 2026)

Handle PDF document security with comprehensive signing and encryption components.

  • Supports all major PDF signature standards including PAdES B-B to B-LTA profiles.
  • Provides long-term validation (LTV) signatures for future-proof document authenticity.
  • Includes PDF form creation and modification capabilities.
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A development library that simplifies PDF security with modern cryptography.
Secure PDF offers a suite of native development components to add robust PDF document security features to applications. It supports signing, verifying, encrypting, and decrypting PDFs, including advanced PAdES signatures with long-term validation. The library also enables automated handling of fillable PDF forms and integrates with existing Public Key Infrastructure (PKI) environments, ensuring compliance with PDF security standards.

Comprehensive PDF Signing

Sign PDF documents using basic Adobe signatures or advanced PAdES profiles, including BES, EPES, and long-term archival (B-LTA) signatures. Supports embedded timestamps with trusted Time-Stamping Authority (TSA) integration.

Signature Verification

Verify the validity and integrity of PDF signatures, including full certificate chain validation. Checks revocation status using CRL and OCSP sources and supports offline verification using cached validation material.

Long-Term Validation (LTV) Support

Create signatures embedding full validation material including certificates and revocation data, along with document timestamps to maintain signature validity even if certificates expire or online validation services become unavailable.

Password and Certificate-Based Encryption

Encrypt PDF documents using symmetric password-based or asymmetric certificate-based encryption.

Decryption Capabilities

Decrypt password-protected or certificate-encrypted PDFs using the appropriate credentials or private keys.

PDF Form Handling

Create, fill, and modify fillable PDF form fields programmatically, automating PDF form processes and enhancing document interaction capabilities.

Integration with Existing PKI Environments

Integrate with organizational Public Key Infrastructure by supporting various certificate stores, trusted certificate authorities, and validation policies.

Remote and In-Browser Signing

Supports advanced signing scenarios including remote and in-browser signing where signatures are created externally and later embedded into PDFs.

Cross-Platform Native Components

Provides native components for multiple platforms and development environments including .NET, Java, C++, Delphi, JavaScript, PHP, and Python.

ZUGFeRD/Factur-X E-Invoicing

Create and process electronic invoices with support for ZUGFeRD 1.0, 2.0, and 2.1, based on PDF/A-3.

Product Compatibility

Review the details below to ensure this product is supported within your environment.

Component Type

  • .NET
  • Java
  • JavaScript
  • Objective-C Library
  • VCL Component
  • C++ / MFC Class Library
  • Windows DLL

.NET Version

  • .NET 10 LTS
  • .NET 9 STS
  • .NET 8 LTS
  • .NET 6 LTS
  • .NET 5 / .NET Core 3.1
  • .NET 4.8 or earlier

.NET Platform

  • .NET Assembly
  • .NET Class
  • .NET Core 3.1 Assembly

JavaScript Platform

  • Vanilla JavaScript

Java Platform

  • Java Class

IDE Support

  • Eclipse
  • IntelliJ IDEA
  • JBuilder
  • Visual Studio
  • Visual Studio Code