You link to a PDF file the same way you would link to an HTML file: using the "a" anchor tag and the URL address of the PDF.

Inserting links in PDF files. Foundry Edit Object -function works on editable objects that also include some non-text, but as I said, I can’t change images and I haven’t found any other ...

Safari can use a standard Print dialog and preserve links in a PDF it creates. Visit a web page in Safari. Select File > Print.; In the lower-lefthand corner, select either Open PDF in Preview or ...