Having a heading structure that goes beyond six levels is an indication that there's a lack of focus. The heading structure should be well organized to allow users to easily seek the information required from the document. Keep your usage of heading levels to six. Please note that there are two ways to resolve Heading Structure issues for PDF. If you have exported your PDF from another file format, it’s best to resolve the issue in the original format before exporting it. You can also resolve the issue directly in the PDF file using Adobe Acrobat Pro.
The Document's Heading Structure Goes Beyond Six Levels
- For Adobe Acrobat Pro users, navigate to View, Show/Hide, Navigation Panes, Accessibility tags.
- Double-click the heading you wish to change and enter a heading value between 1 and 6.