TABLE_MISS_HEADER
Rule ID:
table-miss-header
Ruleset:
axe-pdf 1.0
User Impact:
Critical
Guidelines:
WCAG 2.0 (A), Section 508
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Compliance Data & Impact
Disabilities Affected
- Blind
- Deafblind
Standard(s)
- WCAG 2.0 (A)
- Section 508
WCAG Success Criteria [WCAG 2.0 (A)]
- 1.3.1: Info and Relationships
Section 508 Guidelines
- 1194.22 (h): MUST: Markup for data and header cells for tables with multiple row or column headers
How to Fix the Problem
Make tables accessible in PDF documents by using table elements. The applicable standard from Section508.22.h dictates to "associate data and header cells for multi-dimensional data tables."
To check and change table tags in Adobe Acrobat X Pro do the following:
-
Open the document containing a table in Adobe Acrobat X Pro and from the
View menu select
Show/Hide > Navigation Panes > Tags as shown in the
following figure.
-
Expand the Tags node to get to the Table node and expand it. The following
figure shows an untagged table with the first
<TR>tag representing the first row and the table headers reading<TD>.
-
Edit the
<TD>tag and change it to<TH>as shown in the following figure: .
Evaluation of accessibility with WorldSpace Comply
WorldSpace Comply will crawl a website and analyze and detect tables without column headers and data and header cells that are not logically linked. Click the following link for help on using WorldSpace Comply with PDF documents: WorldSpace Comply PDF Analysis.
Resources
Deque University Course Pages (subscription required)
No related course information available.
Refer to the complete list of axe 1.0 rules.
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