printing PDF from PowerPoint VBA

I am trying to have users be able to print various PDF files from my PowerPoint presentation using VBA. I have heard that I need to use DDE messages and I have also read here in a post about a month ago about (by Dragon Emperor) that I could use:
You load a file with the following:
Pdf1.LoadFile FileNameNPath

and use – Pdf1.Print to print.

However I am super-new to code writing and I don’t know how to do all this. Could anyone help me out?

THANKS!