Hi Gurushankar,

You might want to look at these two third-party examples (I have not tried them) : these show how to use Microsoft Powershell (actually it's just using Adobe Acrobat as a program) and Java to print a PDF to the default printer; in theory you could wrap up these in a PRPC Activity* - assuming it would be acceptable to issue the print job from the back-end not the the user's desktop ?

http://stackoverflow.com/questions/7246560/print-automatically-pdf-file-with-powershell

The above suggests something like the following Powershell (but there are other linked examples using Foxit referenced as well):

Start-Process -FilePath "test.pdf" –Verb Print
sleep 10
kill -name AcroRd32

I couldn't find a decent example of printing PDF files from Java, but here's a starter (it uses a PDF Java Library by the look of it):

http://stackoverflow.com/questions/35535589/java-how-to-print-the-pdf-to-a-specific-printer/35535726

If you are running PRPC in Linux environment; you might want to use some the 'pdf2dsc' commandline (to convert PDF to PostScript, which you should then be able to print. (again: I have not tried this).

It sounds like you are working with PDFBytes rather than PDFFiles here: so you would need to write these bytes to a temporary file (probably) before using any of these approaches.

Cheers

John

* I'm also not entirely sure of the best way of 'wrapping' up a Powershell call from Java: but you could perhaps create a Powershell script to 'poll' for a file on-disk (created by a PRPC Activity File Connector maybe).