Heading Levels – Skipped or Nested (MS PowerPoint)
When headings are used correctly in a PDF, assistive technologies are not only able to convey the document’s structure, but also allow users to navigate through the document.
The Purpose of this checkpoint is to ensure that heading levels have been not been skipped. For example, a heading 1 cannot be followed by a heading 3 (without a heading 2 in-between).
CommonLook Office will display a warning message for each instance of skipped heading levels. To correct the problem, follow these steps (also illustrated in the screen shot below):
- Click on the “All Checkpoints” tab and choose the checkpoint related to “Style Mapping.” To assist in finding the Checkpoint that relates to “Style Mapping” refer to this table:
Standard Checkpoint Section 508 – 2001 Regulations (USA) Logical Heading Levels W3C WCAG 2.0 1.3.1 – Style Mapping Health and Human Services – HHS (USA) 3.3 – Styles Used ISO 14289 (PDF/UA) 7.1 – Role Maps – Styles
- Return to the “Current Checkpoint” tab.
- Locate the slide that has the incorrect heading level, select the incorrectly marked element on the slide (probably the title element) and change the PDF tag (at the bottom of the panel) so that skipped headings do not occur.
Note: Heading 1 should be used for the Title slide (the first one in the presentation), Heading 2 is used to designate major sections in the presentation, similar to chapters in a book, and Heading 3 is used for subsections within a particular chapter or major section.
This checkpoint is relevant to the following regulations, guidelines and standards:
|Section 508 – 2001 Regulations (USA)||2001||“Web-Based Information & Applications”||Not required|
|W3C WCAG 2.0||2008||Web Content||SC 2.4.6|
|Health and Human Services – HHS (USA)||2013||PDF File 508 Checklist||ID 3.4|
|ISO 14289 (PDF/UA)||2012||PDF Technology||Section 7.4|