Not all PDF/UA issues can be checked by a machine. Some requirements must be validated by a human. Usually, you do this with a visual check of the logical document structure.
What do you do?
Visually check the following:
- The logical reading order of the document
- The use of appropriate tags (semantics)
- Other accessibility issues, like hyphenation or text in another language (other than the primary language), are marked
How do you do it?
Useful tools for the visual check are:
- The Checker Tab in axesPDF
- The Screenreader Preview in PDF Accessibility Checker (PAC)
These tools offer a simplified structure view so that you can do a visual check very easily and without deep knowledge of PDF structure elements.
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