Lists not tagged as list elements

Who Is Affected

People who are blind or have low vision and use screen readers, keyboard-only users who navigate by list structure, and users with cognitive disabilities who rely on clear document organization.

What This Means

When lists in PDF documents aren't tagged properly, screen readers can't identify them as lists or announce the number of items. Users hear the content as regular paragraphs instead of structured lists, losing important formatting cues that help with comprehension and navigation.

Screen readers typically announce "List with X items" when encountering a properly tagged list, then provide commands to jump between list items. Without proper tagging, users must read through every item sequentially without knowing how many remain or being able to skip ahead.

This affects all types of lists: bulleted lists, numbered lists, and definition lists commonly found in government documents like policy manuals, meeting agendas, and public notices.

Fix: Document

For Adobe Acrobat Pro:

1. Open your PDF in Adobe Acrobat Pro.
2. Go to Tools → Accessibility → Reading Order to open the Reading Order panel.
3. Click on the list content in your document.
4. In the Reading Order panel, click the "List" button to tag the selected content as a list.
5. For each individual list item, select it and click "List Item" in the Reading Order panel.
6. Run the Accessibility Checker (Tools → Accessibility → Full Check) to verify the fix.

For source document remediation:

1. Microsoft Word: Use the built-in list formatting tools (Home tab → Bullets or Numbering) rather than manually typing bullets or numbers.
2. Google Docs: Use Format → Bullets & numbering instead of typing list markers manually.
3. When converting to PDF, ensure you're using "Create PDF" or "Export as PDF" rather than printing to PDF to preserve structure.

For complex documents:

1. If your PDF contains nested lists (lists within lists), ensure each level is properly tagged as both a "List" container and individual "List Item" elements.
2. For definition lists, use the appropriate "Definition List," "Definition Term," and "Definition Description" tags in the Reading Order panel.

Standard Reference

PDF/UA Standard — Logical Structure

Lists must be tagged with appropriate structure elements (L for list container, LI for list items, Lbl for labels, LBody for list body content) to provide semantic meaning to assistive technologies.

• W3C Technique PDF21 — Using List tags for lists in PDF documents
• PDF/UA-1 Standard ISO 14289-1