There are several ways to determine if a PDF file has been tagged:
View Document Properties
Open the Document Properties dialog: File > Properties.
Look for the “Tagged PDF” label near the lower left hand corner of the Description tab.
If the document is tagged, the indicator will read “Yes.”
Reveal the Tags Panel
To open the Tags panel, select the View menu dropdown,
then Navigation Panes,
A tagged document will show tags and a structure tree descending from the root node. To fully expand the entire tree, Control + click on the root node labelled “Tags.”
An untagged document will display the words “No Tags Available” as its root and no structure tree will appear.
In some cases, a document may not be considered tagged by Acrobat even though a structure is visible in the Tags panel. To indicate the document is tagged:
- Select the Options icon from the Tags panel.
- Ensure the “Document is Tagged PDF” option is checked.
Run the Accessibility Checker
The Accessibility Checker can perform a thorough check for many common accessible issues found in PDF documents, including missing tags. For a complete guide on using the Accessibility Checker in Acrobat please refer to the document “Acrobat DC Access Checker”. The section below will only specifically address using the checker to determine if tags are missing.
To run the Accessibility Checker to determine if the document is tagged:
Display the Accessibility toolbar.
Select the View menu dropdown,
Select the Full Check command from the Accessibility pane. This will open the Accessibility Full Check dialog.
Choose how you would like the results displayed: The results can be saved as an HTML file, or as comments placed where the accessibility problems are detected.
Select a page range if a check is needed for individual sections of a document.
Choose the items you want to test from the four categories in the drop-down menu (Document; Page Content; Forms, Tables and Lists; and Alternate Text and Headings).
Select the Start Checking button.
The results are displayed in the Accessibility Checker panel in a tree format, which allows the user to navigate through each error the Checker encountered. Note the areas under Document, Page Content, and Forms, Tables and Lists that are related to tags.