PDFix Desktop 3.0 & SDK 9.0: Validate and Fix Entire PDF Batches in One Click

Illustration of a desktop window announcing a new PDFix update with a large PDFix logo button and a cursor icon.

Diana Kosovacova
Digital Marketing Lead & PDF Accessibility Evangelist

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PDFix Desktop 3.0 and SDK 9.0 ship one of the biggest accessibility upgrades – batch validation of entire folders in a single app dashboard, along with the ability to fix validation errors in the same window, AI auto-tagging, accessibility actions, and deep veraPDF integration.

If you’ve ever had to make 50, 500, or 5,000 PDFs accessible, you know the process: open a file, validate, find errors, fix, save, close, repeat. Our latest release ends that cycle.

PDFix Desktop 3.0 lets you validate and remediate entire folders of PDFs from a single dashboard – no opening files one by one. PDFix SDK 9.0 ships a new generation of remediation actions, deeper veraPDF integration, and stronger batch processing. Here’s what’s new – and why it matters for anyone working toward PDF/UA compliance at scale.

PDFix Desktop 3.0

Faster Accessibility with Full-Folder Batch Validation

Validate every PDF at once. No opening files one by one.

The Application Dashboard is now a true workspace. Drop a folder in and run PDF/UA validation across the entire batch in a single click – no opening files, no switching tools, no waiting between documents. Validation issues from veraPDF are highlighted directly in the dashboard for every document, with a clear description and a visual location showing exactly which element fails and where – at the page, annotation, or content level.

One-click batch fix – the Fix Error button

See an error in the validation results? Hit the Fix Error button to apply the matching remediation across the whole batch, and you have a complete validate → locate → fix loop in a single view. One tool, PDF/UA-compliant files. What used to take a working week now takes minutes.

Screenshot of PDFix Desktop showing batch PDF validation results with error highlights and accessibility issues panel.

Custom actions in Document View – your fixes, your way

Open any document and you’ll find the new Action pane sitting right next to the Validation pane – packed with every remediation action you need to reach PDF/UA compliance. Run validation, see the errors, and apply the fix from the same view in just a few clicks. No more juggling separate tools and windows. Everything lives in one place, in one direction: validate → see errors → fix.

  • Run the built-in “Make Accessible” command – a set of fixes for the most common PDF/UA validation errors. One click and your document comes out fixed.
  • Build your own custom actions – chain together the exact fixes your document set always needs. Save once, apply with two clicks.
Screenshot of PDFix Desktop showing tagged PDF structure, document preview, and AutoTag accessibility action panel.

AI-powered auto-tagging with Docling

The improved AutoTag (Docling) external action now handles complex tables, nested lists, and proper element parenting – exactly the layouts that have always broken auto-taggers. There’s also boosted AutoTag (PDFix) action that uses layout templates for predictable, reproducible tagging across document families.

PDFix SDK 9.0

A new generation of remediation actions

The SDK release brings the same power into your pipelines, document factories, and custom applications. The headline is PDFix Actions – accessibility actions you can drop straight into your remediation flow to accelerate PDF/UA automation.

New built-in actions for PDF/UA remediation

  • Fix Table action
  • Split Content action
  • Fix Metadata and Reset Metadata actions
  • Fix Fonts action, which replaces Embed Fonts and Add Missing Unicode with new options
  • Move Tags action
  • Set Title action option to use the document title from the Info dictionary
  • Support for running combined external and base custom actions directly from the SDK
  • Support for embedding external custom actions into the SDK, including APIs to save and enumerate custom actions
  • Support for external actions in PsCommand
  • Fix Headings parameter Assign heading levels to regenerate H1–H6 from font style and leading numbering

veraPDF object identification – find the error, fix the error

The SDK now ships new object that resolves veraPDF-style object paths to real PDF locations: page number, annotation index, MCID, content stream, bounding box. When veraPDF reports an error, your code can pinpoint exactly where it lives in the document and act on it immediately.

  • Faster remediation – no more parsing reports manually
  • More reliable automation – fix the right element, every time
  • Better user feedback – show end users exactly what failed and where
  • Cleaner CI/CD pipelines – validate, locate, and fix in a single automated pass

Stronger CLI and batch processing

Batch processing got a refresh – built for production pipelines:

  • External actions run in batch mode – apply AI actions across thousands of files
  • Refactored CLI batch command output handling for JSON output to file or stderr
  • Fixed CLI batch command exit codes on exception
  • Fixed forwarding of subprocess stdout and stderr in pdfix_app batch

Frequently Asked Questions

How do I make hundreds of PDFs accessible at once?

With PDFix Desktop 3.0, drag the folder into the Application Dashboard, run batch validation, and click Fix Error to remediate all affected documents in a single pass – no need to open files individually.

What’s the best tool for batch PDF accessibility remediation?

PDFix Desktop 3.0 is the only tool on the market that combines batch PDF/UA validation, AI-powered accessibility fix actions, and veraPDF integration in a single dashboard. You can validate hundreds of PDFs at once, see errors with their exact location in each document, and apply fixes across the entire batch without opening files individually.

What’s the difference between PDFix and Adobe Acrobat for PDF accessibility?

Adobe Acrobat is built around single-document workflows – you open one PDF, run the Accessibility Checker, and fix issues manually. PDFix Desktop is built for automated PDF remediation and high-volume batch operations: drop in a folder, validate every PDF at once, and remediate errors across the whole batch. PDFix also integrates veraPDF directly in the preview and supports automated AI tagging through AI models (Docling), which Acrobat doesn’t offer natively.

Is there a PDF accessibility SDK for developers?

Yes. PDFix SDK 9.0 is a production-ready SDK for embedding PDF/UA validation and remediation into custom applications, document factories, and CI/CD pipelines. It supports external AI actions through the PDFix Actions Marketplace, includes built-in actions like Fix Table, Fix Fonts, Fix Headings, and Fix Metadata, and ships veraPDF-style object identification.

Which PDF accessibility tool supports veraPDF?

PDFix Desktop 3.0 integrates veraPDF directly into the document preview, highlighting validation issues at the page, annotation, or content level. PDFix SDK 9.0 adds PdfObjectInfo, which resolves veraPDF-style object paths to real PDF locations (page number, MCID, content stream, bounding box) – making PDFix one of the few tools that closes the validate → locate → fix loop programmatically. Read more.

Can I run external AI actions from the command line?

Yes. SDK 9.0 adds external action support to batch processing, so you can apply accessibility actions across thousands of files in a single CLI command.

Where can I see the full changelog?

Full release notes are available for both PDFix Desktop and PDFix SDK.