Tagging
Structural markup used to represent document semantics.
Definition
Helps reading order and accessibility interpretation.
Why it matters
Required baseline for accessible PDF variants.
Related PDFHQ workflows
Use this concept when optimizing, converting, validating, or troubleshooting document workflows.
Related Knowledge
Tagged PDF
PDF containing semantic tags for structure and assistive reading.
PDF/UA
PDF/UA is an accessibility-focused PDF profile aimed at usable documents for assistive technologies.