protected void btnCreatePDF_Click(object sender, EventArgs e)
{
    // create a PDF document
    Document document = new Document();

    // set the license key
    document.LicenseKey = "B4mYiJubiJiInIaYiJuZhpmahpGRkZE=";

    // add a page to the PDF document
    PdfPage firstPage = document.AddPage();

    // Create a Times New Roman .NET font of 10 points
    System.Drawing.Font ttfFont = new System.Drawing.Font("Times New Roman", 10, System.Drawing.GraphicsUnit.Point);
    // Create a Times New Roman Italic .NET font of 10 points
    System.Drawing.Font ttfFontItalic = new System.Drawing.Font("Times New Roman", 10,
                System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
    // Create a Times New Roman Bold .NET font of 10 points
    System.Drawing.Font ttfFontBold = new System.Drawing.Font("Times New Roman", 10,
                System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
    // Create a Times New Roman Bold .NET font of 10 points
    System.Drawing.Font ttfFontBoldItalic = new System.Drawing.Font("Times New Roman", 10,
                System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);

    // Create a Sim Sun .NET font of 10 points
    System.Drawing.Font ttfCJKFont = new System.Drawing.Font("SimSun", 10,
                System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);

    // Create the PDF fonts based on the .NET true type fonts
    PdfFont newTimesFont = document.AddFont(ttfFont);
    PdfFont newTimesFontItalic = document.AddFont(ttfFontItalic);
    PdfFont newTimesFontBold = document.AddFont(ttfFontBold);
    PdfFont newTimesFontBoldItalic = document.AddFont(ttfFontBoldItalic);

    // Create the embedded PDF fonts based on the .NET true type fonts
    PdfFont newTimesEmbeddedFont = document.AddFont(ttfFont, true);
    PdfFont newTimesItalicEmbeddedFont = document.AddFont(ttfFontItalic, true);
    PdfFont newTimesBoldEmbeddedFont = document.AddFont(ttfFontBold, true);
    PdfFont newTimesBoldItalicEmbeddedFont = document.AddFont(ttfFontBoldItalic, true);

    PdfFont cjkEmbeddedFont = document.AddFont(ttfCJKFont, true);

    // Create a standard Times New Roman Type 1 Font
    PdfFont stdTimesFont = document.AddFont(StdFontBaseFamily.TimesRoman);
    PdfFont stdTimesFontItalic = document.AddFont(StdFontBaseFamily.TimesItalic);
    PdfFont stdTimesFontBold = document.AddFont(StdFontBaseFamily.TimesBold);
    PdfFont stdTimesFontBoldItalic = document.AddFont(StdFontBaseFamily.TimesBoldItalic);

    // Create CJK standard Type 1 fonts
    PdfFont cjkJapaneseStandardFont = document.AddFont(StandardCJKFont.HeiseiKakuGothicW5);
    PdfFont cjkChineseTraditionalStandardFont = document.AddFont(StandardCJKFont.MonotypeHeiMedium);

    // Add text elements to the document

    TextElement trueTypeText = new TextElement(0, 10, "True Type Fonts Demo:", newTimesFontBold);
    AddElementResult addResult = firstPage.AddElement(trueTypeText);

    // Create the text element
    TextElement textElement1 = new TextElement(20, addResult.EndPageBounds.Bottom + 10, "Hello World !!!!", newTimesFont);
    // Add element to page. The result of adding the text element is stored into the addResult object
    // which can be used to get information about the rendered size in PDF page.
    addResult = firstPage.AddElement(textElement1);

    // Add another element 5 points below the text above. The bottom of the text above is taken from the AddElementResult object
    // set the font size
    newTimesFontItalic.Size = 15;
    TextElement textElement2 = new TextElement(20, addResult.EndPageBounds.Bottom + 5, "Hello World !!!!", newTimesFontItalic);
    textElement2.ForeColor = System.Drawing.Color.Green;
    addResult = firstPage.AddElement(textElement2);

    newTimesFontBoldItalic.Size = 20;
    TextElement textElement3 = new TextElement(20, addResult.EndPageBounds.Bottom + 5, "Hello World !!!!", newTimesFontBoldItalic);
    textElement3.ForeColor = System.Drawing.Color.Blue;
    addResult = firstPage.AddElement(textElement3);

    TextElement stdTypeText = new TextElement(0, addResult.EndPageBounds.Bottom + 10, "Standard PDF Fonts Demo:", newTimesFontBold);
    addResult = firstPage.AddElement(stdTypeText);

    TextElement textElement4 = new TextElement(20, addResult.EndPageBounds.Bottom + 10, "Hello World !!!!", stdTimesFont);
    addResult = firstPage.AddElement(textElement4);

    stdTimesFontItalic.Size = 15;
    TextElement textElement5 = new TextElement(20, addResult.EndPageBounds.Bottom + 5, "Hello World !!!!", stdTimesFontItalic);
    textElement5.ForeColor = System.Drawing.Color.Green;
    addResult = firstPage.AddElement(textElement5);

    stdTimesFontBoldItalic.Size = 20;
    TextElement textElement6 = new TextElement(20, addResult.EndPageBounds.Bottom + 5, "Hello World !!!!", stdTimesFontBoldItalic);
    textElement6.ForeColor = System.Drawing.Color.Blue;
    addResult = firstPage.AddElement(textElement6);

    // embedded true type fonts

    TextElement embeddedTtfText = new TextElement(0, addResult.EndPageBounds.Bottom + 10, "Embedded True Type Fonts Demo:", newTimesFontBold);
    addResult = firstPage.AddElement(embeddedTtfText);

    // russian text
    TextElement textElement8 = new TextElement(20, addResult.EndPageBounds.Bottom + 5, "Появление на свет!!", newTimesEmbeddedFont);
    addResult = firstPage.AddElement(textElement8);

    try
    {
        // get the PDF document bytes
        byte[] pdfBytes = document.Save();

        // send the generated PDF document to client browser

        // get the object representing the HTTP response to browser
        HttpResponse httpResponse = HttpContext.Current.Response;

        // add the Content-Type and Content-Disposition HTTP headers
        httpResponse.AddHeader("Content-Type", "application/pdf");
        httpResponse.AddHeader("Content-Disposition", String.Format("attachment; filename=TextAndFonts.pdf; size={0}", pdfBytes.Length.ToString()));

        // write the PDF document bytes as attachment to HTTP response 
        httpResponse.BinaryWrite(pdfBytes);

        // Note: it is important to end the response, otherwise the ASP.NET
        // web page will render its content to PDF document stream
        httpResponse.End();
    }
    finally
    {
        // close the PDF document to release the resources
        document.Close();
    }
}