Validating PDF/UA or WCAG compliance

You can use these tools to make sure that your PDF file is PDF/UA or WCAG compliant:

PAC – PDF Accessibility Checker

A free-to-download tool that verifies if the PDF file is PDF/UA or WCAG compliant. If the verification fails you can view any issues that lead to the file not being compliant. You can get it online from the PDF/UA Foundation: https://pac.pdf-accessibility.org/en.