List items & Lbl and LBody

Purpose of this criterion

To check whether each List Item (LI) is a child of List (L).

Lists must have the following structure:

  • List element must contain List Item Elements.
  • And, List Item Elements can only contain Label Elements and List Item Body Elements.

Some assistive technologies allow users to navigate from list to list or item to item. If the lists are not correctly formatted with list tags, these users will have difficulty understanding the list content.

How to fix and verify

  • Inspect the tag tree to verify that the list is structured according to the PDF specification.
  • The easiest way to create lists in PDF content is to format them properly using list markup in the authoring tool, for example, Microsoft Word

Important

Use a screen reader to read your document. Listen to list and verify if the list is correctly announced and that it contains a logical structure.

Screenshots

Example of an incorrect list structure