1. Open your document in Adobe Acrobat Pro.
2. Click Tools.
3. Scroll down and click Accessibility.
4. A navigation tab on the right will appear. Click Autotag Document.
5. A Recognition Report with a summary of any possible accessibility issues detected in the document will appear.
You will still need to look over the tags that Adobe Acrobat Pro DC generates to make sure they are correct, and fix them if they are incorrect. In most cases, especially with larger documents, it is faster to let Adobe Acrobat Pro DC tag the document for you rather than manually tagging the entire document.
6. Click on one of the tagging issue and select How to Fix...Tagging.
7. Click on the hyperlink to open the Reading Order Tool.
8. A pop-up window will appear. Under Show page content groups, select Structure types.
9. The document will display the structure types of the tags.
9.1. To change the tag, click on the text box, and select a new structure type.
10. Click the save icon to save the tagged document.
