PDF accessibility basics before you share a document
Readable text, sensible document order and meaningful structure make PDFs easier to use with keyboard, zoom and assistive technology.
Start with real text where possible
A PDF made only from page images is harder to search, select and navigate with assistive technology. If a document contains only images, use an appropriate accessibility remediation workflow and review the resulting text carefully.
When creating a new document, exporting from a structured source is usually better than printing everything to an image.
Check reading order and structure
Visual placement does not always match the order a screen reader will follow. Headings, lists, tables and form labels need meaningful structure in documents intended for broad accessibility.
Simple browser PDF utilities cannot automatically repair every tagging or reading-order problem.
Use readable contrast and scalable content
Text should remain legible when users zoom, and important information should not depend on colour alone. Avoid very small text and low-contrast annotations.
For forms, make labels clear and leave enough visual space around interactive controls.
Validate with the tools your audience uses
Open the final document in more than one viewer, test keyboard navigation where relevant and use a dedicated PDF accessibility checker for formal compliance work.
AJN PDF can help with individual file tasks, but accessibility conformance is a document-authoring and validation responsibility that goes beyond a single conversion step.
Practical checklist
- Prefer real text over image-only pages
- Check reading order
- Keep contrast and zoom readable
- Use a dedicated accessibility checker for formal compliance