Add a link to PDF with an external destination

This code sample helps adding an external link to your PDF.

If your PDF refers to a webpage, or to another external document it is important to be able to add an external links to your PDF. This article shows how you can add a link with an external destination; this can be any document or an URL.

using ( FileStream fileIn = new FileStream("SellingYourHome.pdf", FileMode.Open, FileAccess.Read ) )
{
    Document document = new Document( fileIn );

    RemoteDestination destination = new RemoteDestination();
    destination.Path = "PackingLightBrochure.pdf";
    destination.PageIndex = 2; // third page
    destination.PageDisplay = PageDisplay.FitEntire;
    destination.WindowBehavior = WindowBehavior.NewWindow;
            
    GoToAction action = new GoToAction( destination );
    Link link = new Link( 100, 100, 300, 200 );
    link.BorderStyle = BorderStyle.Solid;
    link.BorderWidth = 1;
    link.BorderColor = RgbColor.Red;
    link.MouseUpActions.Add( action );
    document.Pages[0].Links.Add( link );

    using ( FileStream fileOut = new FileStream("remotedestination.pdf", FileMode.Create, FileAccess.Write ) )
    {
        document.Write( fileOut );
    }
}

Using fileIn As New FileStream("SellingYourHome.pdf", FileMode.Open, FileAccess.Read)
	
    Dim document As New Document(fileIn)
    Dim destination As New RemoteDestination()
    destination.Path = "PackingLightBrochure.pdf"
    destination.PageIndex = 2
	
    ' third page
    destination.PageDisplay = PageDisplay.FitEntire
    destination.WindowBehavior = WindowBehavior.NewWindow

    Dim action As New GoToAction(destination)
    Dim link As New Link(100, 100, 300, 200)
    link.BorderStyle = BorderStyle.Solid
    link.BorderWidth = 1
    link.BorderColor = RgbColor.Red
    link.MouseUpActions.Add(action)
    document.Pages(0).Links.Add(link)

    Using fileOut As New FileStream("remotedestination.pdf", FileMode.Create, FileAccess.Write)
        document.Write(fileOut)
    End Using
End Using