Make the PDF reports output generated from BIRT ADA compliant

Hi ,

We are generating PDF documnet using BIRT default pdf emitter and we have a requiremenat to make the PDF reports ADA compliant.
Inorder to check the PDF report, tags needs to be enabled in PDF that is not happening by default.

BIRT 4.7.0

Please let us know how to generate PDF reports with tags enabled using default PDF emitter.

Regards
Shashank