List items and Lbl and LBody – Failed

List items – Failed and Lbl and LBody – Failed are the two list rules in the Accessibility Checker in Adobe Acrobat Pro. The first fails when a list item (LI) isn't inside a list (L). The second fails when an item's label (Lbl, the bullet or number) or body (LBody, the item's text) isn't inside a list item. Either way, the list's tags, the hidden structure behind it, don't form a proper list, so screen readers can't present it as one.

What this means

A correctly tagged list looks like this in the tag tree:

L
  LI
    Lbl     •
    LBody   Apply online by March 1
  LI
    Lbl     •
    LBody   Bring a photo ID
      L
        LI
          Lbl     –
          LBody   A driver's license or state ID card

Three things to notice:

• Each LI sits inside an L. That's what Acrobat's List items rule checks.
• Each Lbl and LBody sits inside an LI. That's what the Lbl and LBody rule checks.
• A nested list goes inside the LBody of the item it belongs to, not beside it. Microsoft's documentation shows Word exporting nested lists exactly this way.

Common causes of failures:

• Lists typed by hand with hyphens or numbers instead of real list formatting, then tagged as paragraphs and only partly fixed in Acrobat.
• Lbl or LBody tags dragged out of their item while someone was editing the tag tree.
• A list that continues across a page or column break, leaving stray LI tags outside any list.
• Autotagged files where bullets and text became separate paragraphs.

Why it matters

When a list is tagged correctly, a screen reader announces it, for example "list, 4 items", and lets people move from item to item or skip the list entirely. Broken list tags remove all of that. Items are read as unrelated paragraphs, the count is wrong or missing, and nested lists lose their levels, so a sub-point sounds like a main point. This is WCAG 2.1 success criterion 1.3.1, Info and Relationships.

How to fix it in Acrobat Pro

Fix it in the source file

Lists made with real list formatting are tagged correctly on export:

• Word: use the Bullets and Numbering buttons, or list styles, never typed hyphens or numbers. Use Increase Indent for sub-items instead of spaces or tabs. Microsoft documents that Word exports real lists as L, LI, Lbl and LBody.
• PowerPoint: use the bulleted text placeholders in slide layouts rather than separate text boxes for each point.
• InDesign: apply bullets and numbering through paragraph styles, then check the exported list tags in Acrobat.

Export with tags turned on, and check the result in Acrobat or PAC.

Fix it automatically with Includoc

Includoc fixes this automatically. We regroup list content into L, LI, Lbl and LBody tags, including nested lists, so each list is announced with the right number of items.

Our AI pass also looks for text that looks like a list but was tagged as separate paragraphs, such as lines starting with typed hyphens, and suggests the right tags. You confirm those suggestions on the review screen.

Standards

Related errors

• Table rows, TH and TD, Headers and Regularity – Failed: the same kind of nesting problem, for tables.
• Appropriate nesting – Failed: Acrobat's heading rule, another part of the document outline.

To see how lists fit into the tag tree, read What is a tagged PDF?, or check a PDF free to find broken lists.