Adobe Reader does not provide any mechanism for PDF creation.
Consequently, something else is creating your PDF(s).
Look to that process as well as how you set/place the link in the authoring application for determining what the problem is.
Thanks for your reply.
I'm aware of that, and like I said, I'm creating the pdf via "print > save as pdf" from word (as I can from almost any other application. I've been through all the settings I can locate, and I wonder why the hyperlinks to the webpages and mail function whereas top the documents they don't, although they all work in the word file.
The problem is, you are using the Mac Quartz PDF engine. Reader is just seeing what it is creating.