Using Pdf DocumentInfo
How do I set the /Lang element for a pdf document in line with the pdf accessibility requirements detailed here: https://www.w3.org/TR/WCAG20-TECHS/PDF16.html
I have tried DocumentInfo.Add("/Lang", “en-US”)
And while this adds a custom property called /Lang it doesn’t get set as the natural language for the document.
Please can you advise what I need to do?