PDF Links

private void buttonCreatePdf_Click(object sender, EventArgs e)
{
    // create a PDF document
    PdfDocument document = new PdfDocument();

    // display the outlines when the document is opened
    document.Viewer.PageMode = PdfPageMode.Outlines;

    // create the true type fonts that can be used in document
    Font sysFont = new Font("Times New Roman", 10, System.Drawing.GraphicsUnit.Point);
    PdfFont pdfFont = document.CreateFont(sysFont);
    PdfFont pdfFontEmbed = document.CreateFont(sysFont, true);

    Font sysFontBold = new Font("Times New Roman", 12, FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
    PdfFont pdfFontBold = document.CreateFont(sysFontBold);
    PdfFont pdfFontBoldEmbed = document.CreateFont(sysFontBold, true);

    Font sysFontBig = new Font("Times New Roman", 16, FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
    PdfFont pdfFontBig = document.CreateFont(sysFontBig);
    PdfFont pdfFontBigEmbed = document.CreateFont(sysFontBig, true);

    // create a reference Graphics used for measuring
    Bitmap refBmp = new Bitmap(1, 1);
    Graphics refGraphics = Graphics.FromImage(refBmp);
    refGraphics.PageUnit = GraphicsUnit.Point;

    // create page 1
    PdfPage page1 = document.AddPage();

    float crtXPos = 10;
    float crtYPos = 20;

    #region Create Table of contents

    // create table of contents title
    PdfText tableOfContentsTitle = new PdfText(crtXPos, crtYPos, "Table of Contents", pdfFontBigEmbed);
    page1.Layout(tableOfContentsTitle);

    // create a top outline for the table of contents
    PdfDestination tableOfContentsDest = new PdfDestination(page1, new PointF(crtXPos, crtYPos));
    document.CreateTopOutline("Table of Contents", tableOfContentsDest);

    // advance current Y position in page
    crtYPos += pdfFontBigEmbed.Size + 10;

    // create Chapter 1 in table of contents
    PdfText chapter1TocTitle = new PdfText(crtXPos + 30, crtYPos, "Chapter 1", pdfFontBoldEmbed);
    // layout the chapter 1 title in TOC
    page1.Layout(chapter1TocTitle);

    // get the bounding rectangle of the chapter 1 title in TOC
    SizeF textSize = refGraphics.MeasureString("Chapter 1", sysFontBold);
    RectangleF chapter1TocTitleRectangle = new RectangleF(crtXPos + 30, crtYPos, textSize.Width, textSize.Height);

    // advance current Y position in page
    crtYPos += pdfFontEmbed.Size + 10;

    // create Subchapter 1 in table of contents
    PdfText subChapter11TocTitle = new PdfText(crtXPos + 60, crtYPos, "Subchapter 1", pdfFontEmbed);
    // layout the text
    page1.Layout(subChapter11TocTitle);

    // get the bounding rectangle of the subchapter 1 title in TOC
    textSize = refGraphics.MeasureString("Subchapter 1", sysFont);
    RectangleF subChapter11TocTitleRectangle = new RectangleF(crtXPos + 60, crtYPos, textSize.Width, textSize.Height);

    // advance current Y position in page
    crtYPos += pdfFontEmbed.Size + 10;

    // create Subchapter 2 in table of contents
    PdfText subChapter21TocTitle = new PdfText(crtXPos + 60, crtYPos, "Subchapter 2", pdfFontEmbed);
    // layout the text
    page1.Layout(subChapter21TocTitle);

    // get the bounding rectangle of the subchapter 2 title in TOC
    textSize = refGraphics.MeasureString("Subchapter 2", sysFont);
    RectangleF subChapter21TocTitleRectangle = new RectangleF(crtXPos + 60, crtYPos, textSize.Width, textSize.Height);

    // advance current Y position in page
    crtYPos += pdfFontEmbed.Size + 10;

    // create Chapter 2 in table of contents
    PdfText chapter2TocTitle = new PdfText(crtXPos + 30, crtYPos, "Chapter 2", pdfFontBoldEmbed);
    // layout the text
    page1.Layout(chapter2TocTitle);

    // get the bounding rectangle of the chapter 2 title in TOC
    textSize = refGraphics.MeasureString("Capter 2", sysFontBold);
    RectangleF chapter2TocTitleRectangle = new RectangleF(crtXPos + 30, crtYPos, textSize.Width, textSize.Height);

    // advance current Y position in page
    crtYPos += pdfFontEmbed.Size + 10;

    // create Subchapter 1 in table of contents
    PdfText subChapter12TocTitle = new PdfText(crtXPos + 60, crtYPos, "Subchapter 1", pdfFontEmbed);
    // layout the text
    page1.Layout(subChapter12TocTitle);

    // get the bounding rectangle of the subchapter 1 title in TOC
    textSize = refGraphics.MeasureString("Subchapter 1", sysFont);
    RectangleF subChapter12TocTitleRectangle = new RectangleF(crtXPos + 60, crtYPos, textSize.Width, textSize.Height);

    // advance current Y position in page
    crtYPos += pdfFontEmbed.Size + 10;

    // create Subchapter 2 in table of contents
    PdfText subChapter22TocTitle = new PdfText(crtXPos + 60, crtYPos, "Subchapter 2", pdfFontEmbed);
    // layout the text
    page1.Layout(subChapter22TocTitle);

    // get the bounding rectangle of the subchapter 2 title in TOC
    textSize = refGraphics.MeasureString("Subchapter 2", sysFont);
    RectangleF subChapter22TocTitleRectangle = new RectangleF(crtXPos + 60, crtYPos, textSize.Width, textSize.Height);

    // advance current Y position in page
    crtYPos += pdfFontEmbed.Size + 10;

    // create the website link in the table of contents
    PdfText visitWebSiteText = new PdfText(crtXPos + 30, crtYPos, "Visit HiQPdf Website", pdfFontEmbed);
    visitWebSiteText.ForeColor = Color.Navy;
    // layout the text
    page1.Layout(visitWebSiteText);

    // get the bounding rectangle of the website link in TOC
    textSize = refGraphics.MeasureString("Visit HiQPdf Website", sysFont);
    RectangleF visitWebsiteRectangle = new RectangleF(crtXPos + 30, crtYPos, textSize.Width, textSize.Height);

    // create the link to website in table of contents
    document.CreateUriLink(page1, visitWebsiteRectangle, "http://www.hiqpdf.com");

    // advance current Y position in page
    crtYPos += pdfFontEmbed.Size + 10;

    // create a text note at the end of TOC
    PdfTextNote textNote = document.CreateTextNote(page1, new PointF(crtXPos + 10, crtYPos), 
                    "The table of contents contains internal links to chapters and subchapters");
    textNote.IconType = PdfTextNoteIconType.Note;
    textNote.IsOpen = true;

    #endregion

    #region Create Chapter 1 content and the link from TOC

    // create page 2
    PdfPage page2 = document.AddPage();

    // create the Chapter 1 title
    PdfText chapter1Title = new PdfText(crtXPos, 10, "Chapter 1", pdfFontBoldEmbed);
    // layout the text
    page2.Layout(chapter1Title);

    // create the Chapter 1 root outline
    PdfDestination chapter1Destination = new PdfDestination(page2, new PointF(crtXPos, 10));
    PdfOutline chapter1Outline = document.CreateTopOutline("Chapter 1", chapter1Destination);
    chapter1Outline.TitleColor = Color.Navy;

    // create the PDF link from TOC to chapter 1
    document.CreatePdfLink(page1, chapter1TocTitleRectangle, chapter1Destination);

    #endregion

    #region Create Subchapter 1 content and the link from TOC

    // create the Subchapter 1 
    PdfText subChapter11Title = new PdfText(crtXPos, 300, "Subchapter 1 of Chapter 1", pdfFontEmbed);
    // layout the text
    page2.Layout(subChapter11Title);

    // create subchapter 1 child outline
    PdfDestination subChapter11Destination = new PdfDestination(page2, new PointF(crtXPos, 300));
    PdfOutline subchapter11Outline = document.CreateChildOutline("Subchapter 1", subChapter11Destination, chapter1Outline);

    // create the PDF link from TOC to subchapter 1
    document.CreatePdfLink(page1, subChapter11TocTitleRectangle, subChapter11Destination);

    #endregion

    #region Create Subchapter 2 content and the link from TOC

    // create the Subchapter 2 
    PdfText subChapter21Title = new PdfText(crtXPos, 600, "Subchapter 2 of Chapter 1", pdfFontEmbed);
    // layout the text
    page2.Layout(subChapter21Title);

    // create subchapter 2 child outline
    PdfDestination subChapter21Destination = new PdfDestination(page2, new PointF(crtXPos, 600));
    PdfOutline subchapter21Outline = document.CreateChildOutline("Subchapter 2", subChapter21Destination, chapter1Outline);

    // create the PDF link from TOC to subchapter 2
    document.CreatePdfLink(page1, subChapter21TocTitleRectangle, subChapter21Destination);

    #endregion

    #region Create Chapter 2 content and the link from TOC

    // create page 3
    PdfPage page3 = document.AddPage();

    // create the Chapter 2 title
    PdfText chapter2Title = new PdfText(crtXPos, 10, "Chapter 2", pdfFontBoldEmbed);
    // layout the text
    page3.Layout(chapter2Title);

    // create chapter 2 to outline
    PdfDestination chapter2Destination = new PdfDestination(page3, new PointF(crtXPos, 10));
    PdfOutline chapter2Outline = document.CreateTopOutline("Chapter 2", chapter2Destination);
    chapter2Outline.TitleColor = Color.Green;

    // create the PDF link from TOC to chapter 2
    document.CreatePdfLink(page1, chapter2TocTitleRectangle, chapter2Destination);

    #endregion

    #region Create Subchapter 1 content and the link from TOC

    // create the Subchapter 1 
    PdfText subChapter12Title = new PdfText(crtXPos, 300, "Subchapter 1 of Chapter 2", pdfFontEmbed);
    // layout the text
    page3.Layout(subChapter12Title);

    // create subchapter 1 child outline
    PdfDestination subChapter12Destination = new PdfDestination(page3, new PointF(crtXPos, 300));
    PdfOutline subchapter12Outline = document.CreateChildOutline("Subchapter 1", subChapter12Destination, chapter2Outline);

    // create the PDF link from TOC to subchapter 1
    document.CreatePdfLink(page1, subChapter12TocTitleRectangle, subChapter12Destination);

    #endregion

    #region Create Subchapter 2 content and the link from TOC

    // create the Subchapter 2 
    PdfText subChapter22Title = new PdfText(crtXPos, 600, "Subchapter 2 of Chapter 2", pdfFontEmbed);
    // layout the text
    page3.Layout(subChapter22Title);

    // create subchapter 2 child outline
    PdfDestination subChapter22Destination = new PdfDestination(page3, new PointF(crtXPos, 600));
    PdfOutline subchapter22Outline = document.CreateChildOutline("Subchapter 2", subChapter22Destination, chapter2Outline);

    // create the PDF link from TOC to subchapter 2
    document.CreatePdfLink(page1, subChapter22TocTitleRectangle, subChapter22Destination);

    #endregion

    // dispose the graphics used for measuring
    refGraphics.Dispose();
    refBmp.Dispose();

    Cursor = Cursors.WaitCursor;
    string pdfFile = Application.StartupPath + @"\DemoOutput\PdfOutlines.pdf";
    try
    {
        document.WriteToFile(pdfFile);
    }
    catch (Exception ex)
    {
        MessageBox.Show(String.Format("Cannot create the PDF document. {0}", ex.Message));
        return;
    }
    finally
    {
        document.Close();
        Cursor = Cursors.Arrow;
    }

    // open the created PDF document
    try
    {
        System.Diagnostics.Process.Start(pdfFile);
    }
    catch (Exception ex)
    {
        MessageBox.Show(String.Format("The PDF document was created but cannot open '{0}'. {1}", pdfFile, ex.Message));
    }
}