Add File Links and Attachments to Generated PDF Document

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

using System.Drawing;

// Use Winnovative Namespace
using WinnovativeClient;

namespace WnvHtmlToPdfDemo.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 = "fvDh8eDx4fHg4P/h8eLg/+Dj/+jo6Og=";

            // 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.winnovative-software.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;
            }
        }
    }
}

<!DOCTYPE html>
<html>
<head>
    <title>Add File Links and Attachments to PDF</title>
</head>
<body style="font-family: 'Times New Roman'; font-size: 14px">
    <span style="font-size: 24px; font-weight: bold">File Links</span><br />
    <br />
    <span>The image and the text below will become links to a file from disk:</span>
    <br />
    <br />
    <span data-mapping-enabled="true" data-mapping-id="file_link_text" style="font-size: 16px; font-weight: bold; text-decoration: underline; color: navy">Click to open the external file</span><br />
    <br />
    <img data-mapping-enabled="true" data-mapping-id="file_link_image" alt="Logo Image" style="width: 200px" src="img/logo.jpg" />
    <br />
    <br />
    <span style="font-size: 24px; font-weight: bold">File Attachments</span><br />
    <br />
    <span style="">Click the next icon to open the attachment from a file:</span>
    <span data-mapping-enabled="true" data-mapping-id="attach_from_file_icon">&nbsp;&nbsp;</span><br />
    <br />
    <span style="">Click the next icon to open the attachment from a stream:</span>
    <span data-mapping-enabled="true" data-mapping-id="attach_from_stream_icon">&nbsp;&nbsp;</span><br />
    <br />
</body>
</html>