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AI Actions Marketplace for PDF Accessibility | PDFix

Plug AI models directly into PDFix Desktop. Fix tags, alt text, fonts, formulas, and more at scale – fully compliant with PDF/UA, WCAG 2.2, and Section 508.

AI Actions ·Free & paid · Local or Cloud · Docker or CLI

✦ Browse AI Actions
➜ How to Add Action
Illustration of a digital marketplace showcasing PDF accessibility tools, with booths offering features like auto-tagging, OCR, alt text generation, and validation, labeled as free or paid cloud/local actions.

✦ What the PDFix Marketplace Does

The PDFix Actions Marketplace is a growing library of AI-driven accessibility tools that integrate directly into PDFix Desktop or PDFix SDK. Each AI action automates a specific remediation task – from auto-tagging document structure to generating MathML for mathematical formulas.

Every action is labeled so you know exactly what you’re getting:

  • LOCAL: Runs on your machine. No data leaves your environment. Ideal for sensitive or regulated documents.
  • CLOUD: Connects to an external AI model via encrypted connection for accuracy or large-scale processing.
  • FREE: Free with a valid PDFix Desktop license. No additional payment required
  • PAID: Billed through the provider directly. Each paid action lists its own licensing terms.

⚠︎ Docker is needed to run all AI actions

Laptop running PDFix Desktop, surrounded by OpenAI, DuckDB, C++, and Salesforce logos.

🐳 How to Install Docker

PDFix external actions need Docker Desktop to run securely on your computer.
Setting it up is quick and easy.

  1. Download Docker Desktop
  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. Follow the official installation guide on the Docker web.

Browse All AI Actions

Font Fix PDFix: Unicode Repair

Font Fix PDFix is a free, 100% local Docker action that automatically…

Font Fix Callas: Embedding Repair

Font Fix Callas is a free, 100% local Docker action that automatically…

Auto-Tag PDF with Docling

AutoTag Docling is a local Docker action that uses IBM's Docling AI…

Alt Text BLIP for PDF Figures

Set Alternate Description BLIP is a free, local Docker action that generates…

Auto-Tag PDFs Using Amazon Textract

AutoTag Textract is a Docker action that uses Amazon Textract's cloud layout…

Validate PDF/A & PDF/UA with veraPDF

veraPDF Validation is a free, local Docker action that checks a PDF…

Validate PDF Grammar with Arlington

Arlington PDF Validation is a free, local Docker action that checks a…

Duplicate MCID Report for PDFs

Duplicate MCID Report is a free, local validation action that finds duplicate…

Detect PDF Language for PDF/UA

Language Detection is a local Docker action that automatically detects the language…

OCR Tesseract for Scanned PDFs

OCR Tesseract is a free, local Docker action that adds a searchable…

Convert HTML to PDF

HTML to PDF (Chrome) is a local Docker action that converts a…

Generate Formula MathML (OpenAI)

Set Formula MathML (OpenAI) is a cloud-based Docker action that generates MathML…

MathML for PDF Formulas Paddle

Set Formula MathML Paddle is a local Docker action that generates MathML…

Alt Text OpenAI for Figures

Set Alternate Description (OpenAI) is a cloud-based Docker action that generates alt…

Table Summary OpenAI for PDFs

Set Table Summary OpenAI is a cloud-based Docker action that generates a…

Obsolete Actions

⚠︎ Vision AI Alt Text

Set Alternate Description Vision AI is a deprecated PDFix action and will…

Frequently Asked Questions

Which accessibility standards do the actions support?

PDFix actions are designed to meet PDF/UA (ISO 14289-1), WCAG 2.1 and 2.2, and Section 508. Individual action pages specify which checkpoints each addresses.

Are the actions free to use?

Twelve of the sixteen actions in the marketplace are currently free, including auto-tagging with IBM Docling, OCR with Tesseract, formula MathML generation with Paddle, and alt text generation with Salesforce BLIP, and more.

Do I need Docker to use the marketplace actions?

All actions require Docker to run, except the Duplicate MCID Report, which is included directly in PDFix Desktop. See the guide How to add action & install Docker.

Can I run actions in batch?

Yes. All PDFix actions integrate with PDFix Desktop’s batch processing engine, allowing you to process hundreds of PDFs in a single automated run.

Is my document data sent to third parties?

Local actions process everything on your system with no external calls. Cloud actions connect to third-party AI providers (OpenAI, Amazon Textract, etc.) via encrypted connections. Check each action’s data handling section before use with sensitive documents.

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.

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