Relating PDF docs - is there a way to do this?

I’m trying to figure out if there is an easyway to link two related PDF’s to each other, other than grouping them. I see with RTF documents you can put a hyperlink into them that would bounce you to the related item. I see no way of doing this though with PDF’s etc.

Is there a solution to this?


I tried it. It only creates a list of the items. It does not create links.