PDF incorporation into Documentation Set

[kgrace4715 at aol.com]

I was wondering if anyone ever needed to incorporate a pdf into a 
documentation set. There is another department that is in control of a 
few documents. I would like to be able to incorporate that latest 
version of their documents when I generate my sets. Is there anyway to 
incorporate this "foreign document" into my workflow?

Thanks in advance.

K. Grace