Rayo PDF GOGlossary
Tagged PDF: what it is and what it is for
The structure that tells software the reading order of a page.
A tagged PDF includes an internal structure that describes what each part of the page is: heading, paragraph, list, table, image. That structure tells the software in what order to read the content.
It is essential for accessibility: screen readers use the tags to read the document in an understandable way for people with visual disabilities. It also helps reflow the text on small screens.
Not all PDFs are tagged. Those generated from a word processor with the right option usually are; scans and many design exports are not.
Related tools
Frequently asked questions
How do I know if a PDF is tagged?
In the document properties it usually appears as "Tagged PDF".
Keep learning
See the whole knowledge base ›Put what you learned into practice
Rayo PDF GO tools process your files on your device, without uploading them to any server.
See tools