14-003 Numbered heading levels in descending sequence are skipped (Example: <H3> follows directly after <H1>).

Numbered headings skip a level going down, such as H3 straight after H1.

Checkpoint

14: Headings

ISO 14289-1 (PDF/UA-1) clause

7.4-1

Test type in the protocol

Machine-testable

Applies to

Whole document

WCAG 2.x (AxisRemedy's informative mapping)

1.3.1 Info and Relationships (level A)

How AxisRemedy handles it

Tested by the app. AxisRemedy tests this condition itself. For each document it records passed, failed or not applicable, and for every failure the object and the page.

What the check covers

Compares each numbered heading tag with the one before it in document order.

Repairs that target it

• Heading levels: the first becomes H1 and none skips a level

Repairs are optional. The few that could change how a page looks, such as embedding a missing font, need your explicit consent.