File Format & Compatibility

Fix Word PDF/A Files Failing Adobe Acrobat Compliance Checks

Partner Editor Sep 28, 2026 870 views

Question details

A PDF/A file created in Microsoft Word suddenly fails the conformance check in Adobe Acrobat.

How to Fix Word PDF/A Files Suddenly Failing Adobe Acrobat Compliance Checks

Product: Microsoft Word, Adobe Acrobat
Device & OS: not provided
Scenario: Converting a Microsoft Word document to PDF/A and verifying its ISO 19005-1 compliance using Adobe Acrobat's Preflight tool.
Observed behavior: The PDF/A compliance check fails in Adobe Acrobat, despite older PDFs created using the exact same workflow successfully passing the validation.

Before you start

Ensure that both Microsoft Word and Adobe Acrobat are updated to their latest versions, as compliance bugs and PDF conversion glitches are frequently resolved in routine software patches.

Solution 1Recommended

Perform a Baseline Document Test and Validate Updates

Test a simple text document to determine if the compliance issue is document-specific or caused by a system-wide conversion bug.

By isolating the variables in your workflow, you can identify whether the compliance failure is triggered by specific fonts, complex layouts, or transparent elements in your original file, or if there is a fundamental compatibility bug between the current versions of Word and Acrobat.

Create a basic Word document

Open Microsoft Word and create a new, blank document containing only standard text (e.g., using Arial or Calibri), with no images, complex formatting, or embedded objects.

Export as PDF/A

Save the document by selecting 'File', clicking 'Save As', choosing 'PDF', and ensuring the 'ISO 19005-1 compliant (PDF/A)' option is checked in the Options menu.

Run the Acrobat compliance check

Open the newly created PDF in Adobe Acrobat, navigate to the Preflight tool, and run the PDF/A conformance check.

Analyze the results

If the simple document passes but your original fails, investigate the original document for unsupported fonts or transparent elements. If both fail, the issue is likely rooted in your PDF conversion components.

Perform a Baseline Document Test and Validate Updates

Alternative Validation: You can also upload the failing PDF to an alternative PDF/A validator, such as veraPDF, to confirm whether the issue is strictly related to Acrobat's Preflight tool or the file itself.

Solution 2

Gather Diagnostic Details and Contact Adobe Support

If updates and basic troubleshooting do not resolve the issue, consult Adobe Support with detailed error logs and workflow documentation.

Free Microsoft Office alternative

Export Reliable and Compliant PDFs with WPS Office

If Microsoft Word continues to struggle with PDF/A compliance or fails to integrate smoothly with Adobe Acrobat, consider switching to WPS Office. It provides a lightweight, free alternative with highly compatible PDF conversion tools designed to handle professional document workflows seamlessly.

1. Open your document in WPS Office: Launch WPS Office Writer and open your existing Word document.
2. Select the Export to PDF tool: Click on the 'Menu' button in the top-left corner and select 'Export to PDF'.
3. Save and verify: Adjust any necessary export settings in the prompt, click the 'Export' button, and test the resulting PDF in your validator.

Built-in PDF exporter to create reliable and standardized PDF documents instantly.Highly compatible with Microsoft Word formats (.docx, .doc) to ensure strict layout fidelity.Lightweight installation with a familiar, intuitive user interface for seamless migration.Free to use for essential document editing, formatting, and conversion tasks.

microsoft office alternative - wps office

Frequently Asked Questions

What is a PDF/A compliance check?

A PDF/A compliance check verifies if a PDF file meets the ISO 19005 standards for long-term archiving. This ensures the document will look exactly the same in the future, regardless of the software or device used to open it.

Why do some older PDF/A files pass the check while new ones fail?

This usually happens due to recent software updates in Microsoft Word or Adobe Acrobat that alter the conversion engine. It can also be caused by using unsupported fonts, restrictive font licenses, or introducing complex elements like transparency in the new documents.

Does embedding fonts affect PDF/A compliance?

Yes, PDF/A strict compliance requires all fonts to be fully embedded within the document. If a specific font has a license restriction that prevents embedding, the resulting file will inevitably fail the compliance check.

How can I verify PDF/A compliance without Adobe Acrobat?

You can use alternative PDF/A validation tools, such as the open-source veraPDF software or various online ISO conformance checkers, to determine if the failure is specific to Acrobat's validation engine or the file itself.

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