Add link annotation to a document in Ruby

To add a hyperlink or intra-document link annotation to a PDF Document page.

doc = PDFDoc.new(filename)
page = doc.GetPage(1)

# Create a hyperlink
hyperlink = Link.Create(doc.GetSDFDoc(), Rect.new(85, 570, 503, 524), Action.CreateURI(doc.GetSDFDoc(), "http://www.pdftron.com"))
hyperlink.RefreshAppearance()
page.AnnotPushBack(hyperlink)

# Create an intra-document link
goto_page_3 = Action.CreateGoto(Destination.CreateFitH(doc.GetPage(3), 0))
link = Link.Create(doc.GetSDFDoc(), Rect.new(85, 458, 503, 502), goto_page_3)
link.RefreshAppearance()
page.AnnotPushBack(link)

Add or edit PDF annotations sample
Full code sample which shows how to add or edit PDF annotations (e.g. hyperlink, intra-document link, stamp, rubber stamp, file attachment, sound, text, free-text, line, circle, square, polygon, polyline, highlight, squiggly, caret, and ink).