ACCESSIBLE PDFs: How to Set the Document Root

Human hands holding a young green plant

Every PDF document needs a “root.”

I get this question all the time from fellow PDF remediators:

“I am getting this error: ‘”Part” structure element used as root element.’ How can I fix it?”

You need to set the root of the PDF as “Document.”


1) In the Acrobat Pro DC Tags pane, create a new Document tag and position it at the root under the Tags tree.

Accessibility Tag Pane Adobe Acrobat Pro DC

2) Select the rest of the tag structure and drag it inside (under) the root Document tag.

3) Save the file.


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