    using System;
    using System.Collections.Generic;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;

    using System.Drawing;

    // Use EVO PDF Namespace
    using EvoPdfClient;

    namespace EvoHtmlToPdfDemo.HTML_to_PDF.File_Links_Attachments
    {
        public partial class Create_File_Links_and_Atachments : System.Web.UI.Page
        {
            protected void convertToPdfButton_Click(object sender, EventArgs e)
            {
                // Get the server IP and port
                String serverIP = textBoxServerIP.Text;
                uint serverPort = uint.Parse(textBoxServerPort.Text);

                // Create a HTML to PDF converter object
                HtmlToPdfConverter htmlToPdfConverter = null;
                if (radioButtonUseTcpService.Checked)
                    htmlToPdfConverter = new HtmlToPdfConverter(serverIP, serverPort);
                else
                    htmlToPdfConverter = new HtmlToPdfConverter(true, textBoxWebServiceUrl.Text);

                // Set optional service password
                if (textBoxServicePassword.Text.Length > 0)
                    htmlToPdfConverter.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
                htmlToPdfConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

                // Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
                // Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
                htmlToPdfConverter.ConversionDelay = 2;

                string htmlWithLinksAndAttachMarkers = htmlStringTextBox.Text;
                string baseUrl = baseUrlTextBox.Text;

                // Convert a HTML string with markers for file links and attachments to a PDF document object
                Document pdfDocument = htmlToPdfConverter.ConvertHtmlToPdfDocumentObject(htmlWithLinksAndAttachMarkers, baseUrl);

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

                // Create File Attachments

                // 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");

                // Create an attachment from file with paperclip icon in PDF
                HtmlElementMapping attachFromFileIconMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("attach_from_file_icon");
                if (attachFromFileIconMapping != null)
                {
                    PdfPage attachFromFilePage = pdfDocument.GetPage(attachFromFileIconMapping.PdfRectangles[0].PageIndex);
                    RectangleFloat attachFromFileIconRectangle = attachFromFileIconMapping.PdfRectangles[0].Rectangle;

                    string fileAttachmentWithIconPath = Server.MapPath("~/DemoAppFiles/Input/Attach_Files/Attachment_File_Icon.txt");

                    // Create the attachment from file
                    FileAttachmentElement attachFromFileElement = new FileAttachmentElement(attachFromFileIconRectangle, fileAttachmentWithIconPath);
                    attachFromFileElement.IconType = FileAttachmentIcon.Paperclip;
                    attachFromFileElement.Text = "Attachment from File with Paperclip Icon";
                    attachFromFileElement.IconColor = RgbColor.Blue;
                    attachFromFilePage.AddElement(attachFromFileElement);
                }

                // Create an attachment from stream with pushpin icon in PDF
                byte[] attachmentDataWithIcon = null;
                HtmlElementMapping attachFromStreamIconMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("attach_from_stream_icon");
                if (attachFromStreamIconMapping != null)
                {
                    PdfPage attachFromStreamPage = pdfDocument.GetPage(attachFromStreamIconMapping.PdfRectangles[0].PageIndex);
                    RectangleFloat attachFromStreamIconRectangle = attachFromStreamIconMapping.PdfRectangles[0].Rectangle;

                    string fileStreamAttachmentWithIconPath = Server.MapPath("~/DemoAppFiles/Input/Attach_Files/Attachment_Stream_Icon.txt");

                    attachmentDataWithIcon = System.IO.File.ReadAllBytes(fileStreamAttachmentWithIconPath);

                    // Create the attachment from stream
                    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;
                    attachFromStreamPage.AddElement(attachFromStreamElement);
                }

                // 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=File_Links_and_Attachments.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();
            }

            protected void Page_Load(object sender, EventArgs e)
            {
                if (!IsPostBack)
                {
                    string currentPageUrl = HttpContext.Current.Request.Url.AbsoluteUri;
                    string rootUrl = "http://www.evopdf.com/demo/";

                    htmlStringTextBox.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/HTML_Files/File_Attachments.html"));
                    baseUrlTextBox.Text = rootUrl + "DemoAppFiles/Input/HTML_Files/";

                    sampleCodeLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Code_Samples/CSharp/AspNet/HTML_to_PDF/Links_Attach/Create_Links_Atach.html"));
                    descriptionLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Descriptions/AspNet/HTML_to_PDF/Links_Attach/Create_Links_Atach.html"));

                    Master.CollapseAll();
                    Master.ExpandNode("HTML_to_PDF");
                    Master.ExpandNode("File_Links_and_Attachments");
                    Master.SelectNode("Create_File_Links_and_Attachments");
                }
            }

            protected void demoMenu_MenuItemClick(object sender, MenuEventArgs e)
            {
                switch (e.Item.Value)
                {
                    case "Live_Demo":
                        demoMultiView.SetActiveView(liveDemoView);
                        break;
                    case "Description":
                        demoMultiView.SetActiveView(descriptionView);
                        break;
                    case "Sample_Code":
                        demoMultiView.SetActiveView(sampleCodeView);
                        break;
                    default:
                        break;
                }
            }
        }
    }