Tutorial: Fixing Table Tags in PDF

Fixing Table Tags

Correct table tagging is essential for PDF accessibility. Screen readers depend on proper structure (<TR>, <TH>, <TD>) and attributes like scope to read tables accurately. With PDFix Desktop, you can quickly fix tables manually, validate them, and now even use AI-powered tools to automate the process.

1. Check Table Tags

  • Open your PDF in PDFix Desktop.
  • Run Validation from the Tags panel to identify table issues.
  • Review the tag tree to see if rows, headers, and cells are structured correctly.

2. Fix Structure

  • If headers are tagged as data (or vice versa), double-click the tag and change the type.
  • Rearrange rows or cells with drag-and-drop.
  • If a table is mistakenly tagged as a paragraph, delete the tag and re-tag as Table.

3. Add Scope Attributes

  • In the Tag Attributes panel, right-click a <TH> cell → Add Attribute → Scope.
  • Choose row, column, or both.
  • Apply the same scope to multiple headers at once for consistency.

4. Finalize & Validate

  • Confirm that each table uses <TR> rows with <TH> and <TD> cells.
  • Ensure headers and data cells align logically.
  • Run Validation again — the table should now pass accessibility checks.

What’s New in PDFix

  • Generate Table Summary using PDFix and OpenAI – AI creates short summaries of table content for accessibility
  • PDFix Layout Template – automate table tagging for complex or repeated tables across large document sets

Learn More: Watch our webinar on auto-tagging complex tables