Attach Files and Streams to a PDF Document

protected void createPdf()
{
    // Get the server IP and port
    String serverIP = textBoxServerIP.Text;
    uint serverPort = uint.Parse(textBoxServerPort.Text);

    // Create a PDF document
    Document pdfDocument = null;
    if (radioButtonUseTcpService.Checked)
        pdfDocument = new Document(serverIP, serverPort);
    else
        pdfDocument = new Document(true, textBoxWebServiceUrl.Text);

    // Set optional service password
    if (textBoxServicePassword.Text.Length > 0)
        pdfDocument.ServicePassword = textBoxServicePassword.Text;

    // 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=";

    // Display the attachments panel when the PDF document is opened in a PDF viewer
    pdfDocument.ViewerPreferences.PageMode = ViewerPageMode.UseAttachments;

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

    // The titles font used to mark various sections of the PDF document
    PdfFont titleFont = new PdfFont("Times New Roman", 10, true);
    titleFont.Bold = true;
    PdfFont subtitleFont = new PdfFont("Times New Roman", 8, true);

    // Add document title
    TextElement titleTextElement = new TextElement(5, 5, "Attach Files and Streams to a PDF Document", titleFont);
    pdfPage.AddElement(titleTextElement);

    // Create an attachment from a file without icon
    string fileAttachmentPath = Server.MapPath("~/DemoAppFiles/Input/Attach_Files/Attachment_File.txt");
    pdfDocument.AddFileAttachment(fileAttachmentPath, "Attachment from File");

    // Create an attachment from a stream without icon
    string fileStreamAttachmentPath = Server.MapPath("~/DemoAppFiles/Input/Attach_Files/Attachment_Stream.txt");
    byte[] attachmentData = System.IO.File.ReadAllBytes(fileStreamAttachmentPath);
    pdfDocument.AddFileAttachment(attachmentData, "Attachment_Stream.txt", "Attachment from Stream");

    // Add the text element
    string text = "Click the next icon to open the attachment from a file:";
    TextElement textElement = new TextElement(0, 0, 200, text, subtitleFont);
    pdfDocument.AddElement(textElement, 15);

    // Create an attachment from file with paperclip icon in PDF
    string fileAttachmentWithIconPath = Server.MapPath("~/DemoAppFiles/Input/Attach_Files/Attachment_File_Icon.txt");
    // Create the attachment from file
    RectangleFloat attachFromFileIconRectangle = new RectangleFloat(0, 0, 6, 10);
    FileAttachmentElement attachFromFileElement = new FileAttachmentElement(attachFromFileIconRectangle, fileAttachmentWithIconPath);
    attachFromFileElement.IconType = FileAttachmentIcon.Paperclip;
    attachFromFileElement.Text = "Attachment from File with Paperclip Icon";
    attachFromFileElement.IconColor = RgbColor.Blue;
    pdfDocument.AddElement(attachFromFileElement, 10, true, false, 0, true, false);

    // Add the text element
    text = "Click the next icon to open the attachment from a stream:";
    textElement = new TextElement(0, 0, 200, text, subtitleFont);
    pdfDocument.AddElement(textElement, 5, false, 10, true);

    // Create an attachment from stream with pushpin icon in PDF
    string fileStreamAttachmentWithIconPath = Server.MapPath("~/DemoAppFiles/Input/Attach_Files/Attachment_Stream_Icon.txt");
    byte[] attachmentDataWithIcon = System.IO.File.ReadAllBytes(fileStreamAttachmentWithIconPath);
    // Create the attachment from stream
    RectangleFloat attachFromStreamIconRectangle = new RectangleFloat(0, 0, 6, 10);
    FileAttachmentElement attachFromStreamElement = new FileAttachmentElement(attachFromStreamIconRectangle, attachmentDataWithIcon, "Attachment_Stream_Icon.txt");
    attachFromStreamElement.IconType = FileAttachmentIcon.PushPin;
    attachFromStreamElement.Text = "Attachment from Stream with Pushpin Icon";
    attachFromStreamElement.IconColor = RgbColor.Green;
    pdfDocument.AddElement(attachFromStreamElement, 10, true, false, 0, true, false);

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