Sumatra PDF is a PDF, ePub, MOBI, CHM, XPS, DjVu, CBZ, CBR reader for Windows

V-PAT for Sumatra

My organization requires a VPAT before software can be installed onto my machine. How can I get one for Sumatra?

I am no expert NOR AN AUTHORITY but presume in my humble opinion that it needs to be supplied by the agency that is procuring SumatraPDF, on the basis the alternative for those with disabilities is to use Adobe Acrobat.

" E202.6.2 Required Documentation

The responsible agency official shall document in writing the basis for determining that conformance to requirements in the Revised 508 Standards constitute an undue burden on the agency, or would result in a fundamental alteration in the nature of the ICT. The documentation shall include an explanation of why and to what extent compliance with applicable requirements would create an undue burden or result in a fundamental alteration in the nature of the ICT.

E202.6.3 Alternative Means

Where conformance to one or more requirements in the Revised 508 Standards imposes an undue burden or a fundamental alteration in the nature of the ICT, the agency shall provide individuals with disabilities access to and use of information and data by an alternative means that meets identified needs."

That last part would require users must have the choice between either viewer. Or any other assistive software such as a text to audio/brail reader.