hi yea,
if your pages are of asp type then this is a good free tool
http://www.tom-muck.com/extensions/help/ForceDownload/
force download will do as it says, your customer clicks the
link and they
are given the option of downloading the pdf, I have found in
the past if i
had a big pdf and explore was trying to open it the screen
seems to kinda
freeze thus using this extension resolved that.
k