Solving the “Table Header Cell Has No Associated Sub Cells” Error in Adobe Acrobat Pro
Today we’re tackling a common issue in PDF accessibility: the “Table Header Cell Has No Associated Sub Cells” error. This can be a stumbling block when ensuring your documents achieve PDF/UA compliance. Here’s our step-by-step guide to help you resolve this.
Video Guide
In Adobe Acrobat, tables must have properly associated header and data cells for screen readers to interpret them correctly. When a table header cell isn’t correctly associated with its corresponding data cells, this error occurs. It’s essential for accessibility that each part of a table is clearly defined and accessible.
Table Accessibility for PDF/UA Compliance
The Reading Order Tool:To fix this error, use the Reading Order tool in Adobe Acrobat. Start by opening your document and navigating to ‘Prepare for Accessibility’. From there, access the Reading Order tool. This tool is crucial for manipulating how screen readers interpret the structure of your document, particularly tables.
Edit Table Properties: Once you’ve opened the Reading Order tool, right-click and select ‘Table Editor’. This allows you to directly edit the table properties. The next step is crucial: select all the cells in the top row of your table, right-click, and choose ‘Table Cell Properties’. Here, set the scope to ‘Column’. This action tells Acrobat that these cells are headers for the columns below.

Sett the Scope: Repeat a similar process for the row headers. Select the cells on the left side of your table, right-click, choose ‘Table Cell Properties’, and change the scope to ‘Row’. This step is vital for Acrobat to understand that these cells are headers for the rows to their right.
Testing and Saving: After adjusting these settings, save your file. Though we’ve made significant changes, it’s always good to retest your document to ensure the error is resolved. Testing is a crucial step in the process of making accessible documents.
By setting the correct scope for table headers in Adobe Acrobat, you solve the “Table Header Cell Has No Associated Sub Cells” error. This fix is a simple yet vital step in ensuring your tables are accessible to all users, including those using screen readers.
Let me be your champion for inclusion. I offer tailored solutions (and self-paced courses!) to ensure your documents meet and exceed compliance expectations. For more detailed insights, tutorials, and in-depth discussions on accessibility and related topics, don’t forget to check out my YouTube channel: The Accessibility Guy on YouTube. Subscribe for regular updates!
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