Feb 24, 2026 · 5 min read · Guide

Making PDFs Accessible: A Developer's Guide

Over 1 billion people worldwide live with some form of disability. When your PDFs aren't accessible, you're excluding a significant portion of your audience — and potentially violating accessibility regulations like WCAG, ADA, and Section 508.

What Makes a PDF Accessible?

An accessible PDF can be read by screen readers and assistive technologies. Key requirements include:

• Proper heading structure: H1, H2, H3 tags that create a logical reading order
• Alternative text for images: Descriptive text that conveys the meaning of visual content
• Tagged content: Structural tags that distinguish paragraphs, lists, tables, and other elements
• Readable fonts: Sufficient contrast and font sizes for low-vision users
• Logical reading order: Content flows in a sequence that makes sense when read linearly

How pdfwithlove Helps

Our tools preserve document structure during operations like merging and splitting. When you merge multiple PDFs, the heading hierarchy and tag structure from each source document are maintained in the output. Our compression engine is designed to never reduce font sizes below legibility thresholds.

The Privacy Angle

Many accessibility checking tools require uploading your document to a cloud service. For organizations handling sensitive documents (healthcare forms, legal contracts, financial statements), this creates a compliance conflict. pdfwithlove's local-first approach means you can prepare and optimize your documents for accessibility without ever exposing their contents to third parties.

Quick Accessibility Checklist

1. Run your PDF through an accessibility checker before distribution
2. Ensure all images have descriptive alt text
3. Verify the reading order makes logical sense
4. Test with at least one screen reader (NVDA or VoiceOver)
5. Check color contrast ratios meet WCAG AA standards (4.5:1 minimum)
6. Ensure form fields are properly labeled and navigable by keyboard