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In this demo you can learn how to attach external files and streams to a PDF document. When you create the attachment you can also give a page and a location in page where to create a link to the attachment marked with an icon.
Server Settings
IP: Port: Password:
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C# Code
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using HiQPdfClient;

namespace HiQPdf_Demo
    public partial class AttachmentsAndFileLinks : System.Web.UI.Page
        protected void buttonCreatePdf_Click(object sender, EventArgs e)
            string serverIP = textBoxServerIP.Text;
            uint serverPort = uint.Parse(textBoxServerPort.Text);
            string serverPassword = textBoxServerPassword.Text;

            // create a PDF document
            PdfDocument document = new PdfDocument(serverIP, serverPort);

            // use server password if necessary
            if (serverPassword.Length > 0)
                document.ServerPassword = serverPassword;

            // set a demo serial number
            document.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";

            // display the attachments when the document is opened
            document.Viewer.PageMode = PdfPageMode.Attachments;

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

            // create the true type fonts that can be used in document            
            PdfFont pdfFontEmbed = document.CreateFontFromName("Times New Roman", 10, true);

            // create an attachment with icon from file
            string filePath1 = Server.MapPath("~") + @"\DemoFiles\Attach\TextAttach1.txt";
            PdfAttachment pdfAttachment1 = document.CreateAttachmentFromFile(page1, new RectangleFloat(10, 30, 10, 20),
                        PdfAttachIconType.PushPin, filePath1);
            pdfAttachment1.Description = "Attachment with icon from a file";

            // write a description at the right of the icon
            PdfText pdfAttachment1Descr = new PdfText(40, 35, pdfAttachment1.Description, pdfFontEmbed);

            // create an attachment with icon from a data
            byte[] fileData2 = System.IO.File.ReadAllBytes(filePath1);
            PdfAttachment pdfAttachment2 = document.CreateAttachmentFromData(page1, new RectangleFloat(10, 60, 10, 20),
                            PdfAttachIconType.Paperclip, fileData2, "AttachFromData_WithIcon.txt");
            pdfAttachment2.Description = "Attachment with icon from data";

            // write a description at the right of the icon
            PdfText pdfAttachment2Descr = new PdfText(40, 65, pdfAttachment2.Description, pdfFontEmbed);

            // create an attachment without icon in PDF from a file
            string filePath2 = Server.MapPath("~") + @"\DemoFiles\Attach\TextAttach2.txt";
            document.CreateAttachmentFromFile(filePath2, "Attachment without icon from a file");

            // create an attachment without icon in PDF from data
            byte[] fileData1 = System.IO.File.ReadAllBytes(filePath2);
            document.CreateAttachmentFromData(fileData1, "AttachFromData_NoIcon.txt", "Attachment without icon from data");

                // write the PDF document to a memory buffer
                byte[] pdfBuffer = document.WriteToMemory();

                // inform the browser about the binary data format
                HttpContext.Current.Response.AddHeader("Content-Type", "application/pdf");

                // let the browser know how to open the PDF document and the file name
                HttpContext.Current.Response.AddHeader("Content-Disposition", String.Format("attachment; filename=PdfAttachments.pdf; size={0}",

                // write the PDF buffer to HTTP response

                // call End() method of HTTP response to stop ASP.NET page processing

        protected void Page_Load(object sender, EventArgs e)
            if (!IsPostBack)