PDF Accessibility

A PDF may look professional while being difficult to use. Scanned image pages can lack selectable text; headings may not be represented semantically; charts may have no appropriate alternatives; and form fields may be unlabeled. These defects make essential forms, brochures and reports harder or impossible to access for some readers.

Accessible preparation starts with the source document: use real headings, descriptive links, meaningful reading order and clearly labeled fields. When exporting, retain document structure and verify that tags, language, alternative text and navigation survived. Tables and complex layouts need particular attention. Automatic checks identify some errors but cannot confirm that a chart description conveys its purpose or that the reading sequence makes sense.

PDF accessibility is related to WCAG accessibility requirements and the PDF/UA standard, but claiming that an automated checker certified full legal compliance is not justified. Test important public documents with appropriate tools and human review. Where possible, offer an accessible HTML alternative; a download alone should not become the only route to essential information.