content-artifact
How to Fix the Problem
In Adobe Acrobat Pro:
- Open the TouchUp Reading Order tool by selecting Tools > Accessibility > Reading Order.
- Select the content you wish to artifact by clicking and dragging a box around it.
- Click the Background/Artifact button.
Why it Matters
Decorative content needs to be programmatically determined as such in order for screen readers to ignore the content. This is done by marking the content as an artifact.
Rule Description
In PDF, artifacts are generally graphics objects or other markings that are not part of the authored content. Examples of artifacts include page header or footer information, lines or other graphics separating sections of the page, or decorative images. (Source: Technique PDF4)
The Algorithm (in simple terms)
Mark all decorative content as an artifact.