How to find the link to an already existing PDF

[fierce_art98A4]

I am creating a document with links to different online manuals.  Most of these manuals already have a link, I can just right click and find the link so I can add that to my document.  There is one manual where I right click and the link to the PDF doesnt show up.   How can i see the link of an already existing linked PDF? Ideally, i just want the reader to click from my document to the PDF document. Any help appreciated.

[Test Screen Name]

I don't get any links shown when I right click in Acrobat Reader. Can you share more details, screen shot etc.?

[fierce_art98A4]

Sorry had not seen this.  I just went ahead and ignored the documents that I could not figure out, appreciate it