Actions Marketplace

Boost PDFix Desktop with AI-Powered Accessibility Actions

Add powerful AI-driven tools to PDFix Desktop and ensure compliance with PDF/UA and WCAG standards in just a few clicks.

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Automate PDF Accessibility with Smart External Actions

Discover the next generation of PDF accessibility automation in PDFix Desktop. With smart external actions, you can integrate AI models and advanced tools directly into your remediation workflow.

Access a continuously expanding library of accessibility actions, updated with the latest AI-driven solutions to meet PDF/UA, WCAG, and Section 508 compliance.

Every action is clearly labeled as Local or Cloud:

• 🖥️ Local actions run entirely on your system. The AI model is installed locally, and no data is ever sent outside your environment
• ☁️ Cloud actions connect securely to external models for more advanced or large-scale processing. These offer enhanced accuracy and performance while maintaining data protection through encrypted connections

Every action is also labeled as Free or Paid:

• 🆓 Free actions can be used without any additional cost or license setup
• 💰 Paid actions require a valid license or an external payment handled directly by the provider. Each paid action specifies its licensing terms and activation method, so you can manage billing and access independently

All Categories Free (11) Marketplace (15) Validation (4) AutoTag (3) Alt Text (2) Paid (4) Language (1) OCR (1) Conversion (1) Formula (2) Table (1)

Fix Fonts (callas software)

A Docker image that automatically fix font issues in a PDF file.…

Auto-Tag PDF (Docling IBM)

Start automating accessibility with IBM’s Docling AI — a 100% free, 100%…

Generate Alternate Text (Salesforce BLIP)

Stop manually writing hundreds of image descriptions. PDFix Desktop now integrates with…

AutoTag PDF (Amazon Textract)

Auto-Tag PDFs with Amazon Textract: Fast, Scalable Cloud OCR for PDF Accessibility…

VeraPDF Validation

The industry-supported, open-source PDF validator trusted by accessibility professionals worldwide. Instantly validate…

Arlington PDF Model

Catch PDF structural errors and syntax violations with the specification-derived Arlington PDF…

Duplicate MCID Report

A Java CLI tool for validating the compliance of PDF documents with…

Language Detection

A Docker image that automatically detects the language of a PDF file.…

OCR Tesseract

Transform scanned PDFs into searchable, accessible documents with Tesseract OCR – 100%…

HTML to PDF Conversion (Google Chrome)

Convert HTML pages and URLs into accessible PDF/UA documents with Google Headless…

Generate Formula MathML (OpenAI)

Transform inaccessible mathematical formulas in PDFs into screen reader-compatible MathML automatically with…

Generate Formula MathML (Paddle)

Transform inaccessible mathematical formulas into screen reader-compatible MathML – 100% Free, 100%…

Generate Alternate Text (OpenAI)

Transform PDF accessibility with enterprise-grade AI that understands images, formulas, and tables…

Generate Table Summary (OpenAI)

Transform complex data tables in PDFs into accessible, screen reader-friendly content PDFix…

AutoTag PDF (Paddle)

Start Automating Accessibility with Paddle AI – 100% Local, 100% free solution…

Obsolete Actions

These are legacy actions that are no longer actively maintained or updated. They remain functional for backward compatibility with older workflows or projects,
but may not receive future fixes or improvements.
We recommend replacing them with the latest supported equivalents to ensure full compatibility and best performance.

All Categories Obsolete (1)

⚠️ Generate Alternate Text Vision

⚠️ The Set Alternate Vision AI action is now obsolete and will…

Integrating external actions into PDFix Desktop is a fast and flexible way to customize your automated PDF accessibility workflows. You can choose from two action types:

• Docker-based actions – ideal for scalable, containerized processing
• Local CLI actions – run via command-line applications on your system

To add an external action, simply select the desired action type and import it into PDFix Desktop. This enables the creation of powerful, reusable automation pipelines for PDF/UA remediation, validation, and batch processing.

For a step-by-step walkthrough, see our guide: How to add the external action.

Some PDFix external actions need Docker Desktop to run securely on your computer.
If you don’t already have it, setting it up is quick and easy:

1. Download Docker Desktop
   Go to the official page: https://www.docker.com/products/docker-desktop/
   Choose your operating system (Windows or macOS) and download the installer.
2. Install Docker Desktop
   • On Windows: Double-click the downloaded file and follow the instructions.
     If Windows asks to enable WSL 2 or Hyper-V, click Yes — these features are required for Docker.
   • On macOS: Open the downloaded .dmg file and drag the Docker icon into your Applications folder.
3. Start Docker Desktop
   After installation, open Docker from the Start Menu (Windows) or Applications (macOS).
   Wait until you see the 🐳 Docker whale icon in your taskbar or menu bar — when it says “Docker is running”, everything is ready.
4. That’s it!
   You don’t need to use any commands. PDFix will automatically connect to Docker in the background when needed.

💡 Tip: The first time you start Docker, it may ask you to create or sign in to a free Docker account — you can skip this if you’re only using Docker locally with PDFix.

Disclaimer: PDFix provides tools and technology to assist in making your documents accessible, but we do not guarantee 100% accessibility. Achieving full compliance requires human checks and intervention, as no tool can ensure complete accessibility. Please note that PDFix is a technology provider, not a service provider. The responsibility for document compliance rests with the user.