How to print a PDF from a UBE using Execute External Program (B34A1030)

I have a UBE that needs to print a PDF.  I have the UBE calling BSFN B34A1030 which executes a command that runs FoxitReader.  The command successfully executes from a Windows command line.  However, the command won't execute successfully from the Execute External Program call.  Oracle Support tells me that since FoxitReader is an interactive application the External call will not work.

Can anyone recommend a program that prints a PDF without any interactive code that I can use with B34A1030?

Basically, I need to run this PDF printing application using External Command and pass the PDF file path/name and the printer and have the PDF print there.