BETA release

L_F08 LBody with substructure incorrectly tagged

PDF-F38, FAIL

Use case(s): List

Last updated on November 20, 2025

Description

This example demonstrates the failure condition that applies when a list with at least one list item with substructure is not tagged correctly, breaking the list’s structure for AT users.

In this example, two list items include additional paragraphs. Each paragraph’s P tag is incorrectly placed outside of the L tag.

Each LBody should be a parent of the complete substructure content, in this case the P tags should be children of their respective LBody tags.

Download(s)

These minimal examples are designed to express a single Technique. Effective use requires software that supports Tagged PDF.

UA1_Tpdf-L_F08.pdf

Test(s)

Expected Results

Check #⁠1 is false.

Procedures

Check that the complete content of each list item, including any substructure, is correctly tagged as a child of its parent LBody tag.

Application to WCAG 2.x

This Technique addresses the following WCAG 2.x Success Critieria:

1.3.2 Meaningful Sequence

1.3.1 Info and Relationships

Matterhorn Protocol

The Matterhorn Protocol 1.1 provides an algorithm for conformance with PDF/UA-1. Matterhorn checkpoint(s) (human or machine) relevant to this use-case:

01-006
09-001
09-002
09-003
09-005
16-001
16-002
16-003

Accessibility Technique Support Finder

Accessibility Technique Support Finders allows you to quickly locate software and services that claim to support a given Technique. Simply search the internet with a given technique’s finder together with the name of your product.

The technique finder for this Technique is: UA1_Tpdf-L_F08

NOTE: the “technique support finder” concept was introduced in January 2025; please allow time for adoption.