PDFix SDK

Produced by PDFix

Enterprise PDF Accessibility API for Developers

Integrate powerful PDF accessibility automation directly into your applications and workflows. PDFix SDK is a high-performance C++ library that enables developers to auto-tag PDFs, ensure PDF/UA and WCAG compliance, and process thousands of documents per hour.

Built for Enterprise-Scale Automation

• High-speed batch processing
  • Handle thousands of PDFs per hour with enterprise-grade performance
• AI-powered structure detection
  • Automatically identify headings, lists, tables, and reading order
• Cross-platform compatibility
  • Windows, Linux, macOS, and server environments
• Multiple integration options
  • REST API for C++, Java, Python, .NET, or use the CLI for no-code automation
• Built-in PDF/UA validation
  • Powered by VeraPDF following the Matterhorn Protocol

Flexible Automation Approaches

Choose what works best for your workflow:

• No-Code JSON Configuration
• API Integration
• Command-Line Interface

AI-Powered Actions Integration

Extend capabilities with specialized AI models from the Actions Marketplace: alt text generation, formula conversion, language detection, OCR, and table summarization. Integrate Docker-based or local AI models for advanced automation.

Beyond Accessibility

• PDF to HTML conversion – Fixed-layout or responsive HTML5 with semantic structure
• Data extraction – Extract text, tables, images, and structured content to HTML, XML, JSON, CSV, or Excel
• PDF Forms to HTML – Convert interactive forms with full functionality

Perfect For

Developers building accessibility features, government agencies requiring automated compliance, financial services, healthcare organizations, educational institutions, and digital publishers processing high-volume accessible documents.

Learn more: pdfix.net/products/pdfix-sdk

Get started: pdfix.net/products/pdfix-sdk/getting-started

How-to guide : Auto-Tag with PDFix SDK

Check out this product on the member website

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API / SDK Windows MacOS Linux Command-line Developer/forensics tool Subscription Perpetual

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PDF 2.0 (ISO 32000-2) WTPDF Tagged PDF PDF/UA-1 PDF/UA-2 ISO TS 32005 WCAG PDF 1.7 (ISO 32000-1:2008) Deriving HTML from PDF ISO TS 32005

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View / render Tagged PDF content available to AT Export to other formats Convert to PDF from other formats Create PDF tags Reflow Remediate Tagged PDF Accessible MathML Add, review & markup annotations Edit PDF content Insert, delete, move pages Resize / crop pages Redaction Stamping / Watermarking OCR Approval (digital signatures) File attachments Associated Files Fill in forms Flatten forms Validate PDF/UA