Create a consistent descriptive record for each accession by adding a header with accession number, collection title, …
Open your PDF in Adobe Acrobat Pro.
Add the Accessibility tools to your Tools pane if not already present.
Best practiceYou can add the Accessibility tools by selecting the Tools tab, then finding Accessibility and clicking Add.
Open the Tags panel by clicking on it in the left navigation pane or by selecting it from the View menu.
NoteThis panel was formerly called the Tags panel.
Expand the tag tree in the Tags panel to review the document's structure.
Identify any missing or incorrect semantic tags for headings, lists, or tables.
Best practiceUse the Reading Order tool for a visual overview of tag application and reading order.
To add a missing tag, right-click the parent tag where it belongs, select Create Tag, and choose the appropriate type (such as H1 for a heading, L for a list, or Table for a table).
To change an incorrect tag, right-click the tag, choose Properties, and select the correct tag type from the Type dropdown.
Drag tags within the tag tree to correct their order or nesting as needed.
Save your document after making all necessary tag corrections.
Run Full Check from the Accessibility tools to verify that headings, lists, and tables are correctly tagged.
Best practiceIf the Full Check reports issues, revisit the tag tree and adjust as needed.
You can right-click tags in the Accessibility tags panel to quickly add, rename, or change their type for better document structure.
This runs in the Acrobat app - there is no separate API for this task.
| PDF/UA | WCAG |
|---|---|
| PDF-specific standard for accessibility | Works for many formats, not just PDF |
| Focuses on PDF tags and structure | Focuses on user experience and content |
| Often required for official PDF documents | Required for web and digital content in general |
Manual checking is important because auto-tagging does not always get the structure right. It can miss complex tables, reading order, or special content. Checking by hand helps make sure everyone, including people using screen readers, can understand the PDF correctly.