Add URI Links in a PDF Document

protected void createPdfButton_Click(object sender, EventArgs e)
{
    // Create a PDF document
    Document pdfDocument = new Document();

    // Set license key received after purchase to use the converter in licensed mode
    // Leave it not set to use the converter in demo mode
    pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

    // Add a page to PDF document
    PdfPage pdfPage = pdfDocument.AddPage();

    try
    {
        // The titles font used to mark various sections of the PDF document
        PdfFont titleFont = pdfDocument.AddFont(new Font("Times New Roman", 10, FontStyle.Bold, GraphicsUnit.Point));
        PdfFont subtitleFont = pdfDocument.AddFont(new Font("Times New Roman", 8, FontStyle.Regular, GraphicsUnit.Point));

        // The links text font
        PdfFont linkTextFont = pdfDocument.AddFont(new Font("Times New Roman", 8, FontStyle.Bold, GraphicsUnit.Point));
        linkTextFont.IsUnderline = true;

        float xLocation = 5;
        float yLocation = 5;

        // Add document title
        TextElement titleTextElement = new TextElement(xLocation, yLocation, "Create URI Links in PDF Document", titleFont);
        AddElementResult addElementResult = pdfPage.AddElement(titleTextElement);

        yLocation = addElementResult.EndPageBounds.Bottom + 15;

        // Make a text in PDF a link to a web page

        // Add the text element
        string text = "Click this text to open a web page!";
        float textWidth = linkTextFont.GetTextWidth(text);
        TextElement linkTextElement = new TextElement(xLocation, yLocation, text, linkTextFont);
        linkTextElement.ForeColor = Color.Navy;
        addElementResult = pdfPage.AddElement(linkTextElement);

        // Create the URI link element having the size of the text element
        RectangleF linkRectangle = new RectangleF(xLocation, yLocation, textWidth, addElementResult.EndPageBounds.Height);
        string url = "http://www.evopdf.com";
        LinkUrlElement uriLink = new LinkUrlElement(linkRectangle, url);

        // Add the URI link to PDF document
        pdfPage.AddElement(uriLink);

        yLocation = addElementResult.EndPageBounds.Bottom + 10;

        // Make an image in PDF a link to a web page

        TextElement subtitleTextElement = new TextElement(xLocation, yLocation, "Click the image below to open a web page:", subtitleFont);
        addElementResult = pdfPage.AddElement(subtitleTextElement);

        yLocation = addElementResult.EndPageBounds.Bottom + 5;

        // Add the image element
        ImageElement linkImageElement = new ImageElement(xLocation, yLocation, 120, Server.MapPath("~/DemoAppFiles/Input/Images/logo.jpg"));
        addElementResult = pdfPage.AddElement(linkImageElement);

        // Create the URI link element having the size of the image element
        linkRectangle = addElementResult.EndPageBounds;
        uriLink = new LinkUrlElement(linkRectangle, url);

        // Add the URI link to PDF document
        pdfPage.AddElement(uriLink);

        // Save the PDF document in a memory buffer
        byte[] outPdfBuffer = pdfDocument.Save();

        // Send the PDF as response to browser

        // Set response content type
        Response.AddHeader("Content-Type", "application/pdf");

        // Instruct the browser to open the PDF file as an attachment or inline
        Response.AddHeader("Content-Disposition", String.Format("attachment; filename=URI_Links.pdf; size={0}", outPdfBuffer.Length.ToString()));

        // Write the PDF document buffer to HTTP response
        Response.BinaryWrite(outPdfBuffer);

        // End the HTTP response and stop the current page processing
        Response.End();
    }
    finally
    {
        // Close the PDF document
        pdfDocument.Close();
    }
}

Protected Sub createPdfButton_Click(ByVal sender As Object, ByVal e As EventArgs)
    ' Create a PDF document
    Dim pdfDocument As New Document()

    ' Set license key received after purchase to use the converter in licensed mode
    ' Leave it not set to use the converter in demo mode
    pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c="

    ' Add a page to PDF document
    Dim pdfPage As PdfPage = pdfDocument.AddPage()

    Try
        ' The titles font used to mark various sections of the PDF document
        Dim titleFont As PdfFont = pdfDocument.AddFont(New Font("Times New Roman", 10, FontStyle.Bold, GraphicsUnit.Point))
        Dim subtitleFont As PdfFont = pdfDocument.AddFont(New Font("Times New Roman", 8, FontStyle.Regular, GraphicsUnit.Point))

        ' The links text font
        Dim linkTextFont As PdfFont = pdfDocument.AddFont(New Font("Times New Roman", 8, FontStyle.Bold, GraphicsUnit.Point))
        linkTextFont.IsUnderline = True

        Dim xLocation As Single = 5
        Dim yLocation As Single = 5

        ' Add document title
        Dim titleTextElement As New TextElement(xLocation, yLocation, "Create URI Links in PDF Document", titleFont)
        Dim addElementResult As AddElementResult = pdfPage.AddElement(titleTextElement)

        yLocation = addElementResult.EndPageBounds.Bottom + 15

        ' Make a text in PDF a link to a web page

        ' Add the text element
        Dim text As String = "Click this text to open a web page!"
        Dim textWidth As Single = linkTextFont.GetTextWidth(text)
        Dim linkTextElement As New TextElement(xLocation, yLocation, text, linkTextFont)
        linkTextElement.ForeColor = Color.Navy
        addElementResult = pdfPage.AddElement(linkTextElement)

        ' Create the URI link element having the size of the text element
        Dim linkRectangle As New RectangleF(xLocation, yLocation, textWidth, addElementResult.EndPageBounds.Height)
        Dim url As String = "http://www.evopdf.com"
        Dim uriLink As New LinkUrlElement(linkRectangle, url)

        ' Add the URI link to PDF document
        pdfPage.AddElement(uriLink)

        yLocation = addElementResult.EndPageBounds.Bottom + 10

        ' Make an image in PDF a link to a web page

        Dim subtitleTextElement As New TextElement(xLocation, yLocation, "Click the image below to open a web page:", subtitleFont)
        addElementResult = pdfPage.AddElement(subtitleTextElement)

        yLocation = addElementResult.EndPageBounds.Bottom + 5

        ' Add the image element
        Dim linkImageElement As New ImageElement(xLocation, yLocation, 120, Server.MapPath("~/DemoAppFiles/Input/Images/logo.jpg"))
        addElementResult = pdfPage.AddElement(linkImageElement)

        ' Create the URI link element having the size of the image element
        linkRectangle = addElementResult.EndPageBounds
        uriLink = New LinkUrlElement(linkRectangle, url)

        ' Add the URI link to PDF document
        pdfPage.AddElement(uriLink)

        ' Save the PDF document in a memory buffer
        Dim outPdfBuffer() As Byte = pdfDocument.Save()

        ' Send the PDF as response to browser

        ' Set response content type
        Response.AddHeader("Content-Type", "application/pdf")

        ' Instruct the browser to open the PDF file as an attachment or inline
        Response.AddHeader("Content-Disposition", String.Format("attachment; filename=URI_Links.pdf; size={0}", outPdfBuffer.Length.ToString()))

        ' Write the PDF document buffer to HTTP response
        Response.BinaryWrite(outPdfBuffer)

        ' End the HTTP response and stop the current page processing
        Response.End()
    Finally
        ' Close the PDF document
        pdfDocument.Close()
    End Try
End Sub