    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.PDF_Creator.Headers_and_Footers
    {
        public partial class Header_Footer_In_External_PDF : System.Web.UI.Page
        {
            protected void createPdfButton_Click(object sender, EventArgs e)
            {
                // 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=";

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

                // Add a default document header
                AddHeader(pdfDocument, true);

                // Add a default document footer
                AddFooter(pdfDocument, true, true);

                // Create a HTML to PDF element to add to document
                HtmlToPdfElement htmlToPdfElement = new HtmlToPdfElement(0, 0, urlTextBox.Text);

                // Optionally set a delay before conversion to allow asynchonous scripts to finish
                htmlToPdfElement.ConversionDelay = 2;

                // Add HTML to PDF element to document
                pdfPage.AddElement(htmlToPdfElement);

                // Insert an external PDF document in the beginning of the final PDF document
                string pdfFileBefore = Server.MapPath("~/DemoAppFiles/Input/PDF_Files/Merge_Before_Conversion.pdf");
                pdfDocument.InsertDocument(0, pdfFileBefore, addHeaderFooterInInsertedPdfCheckBox.Checked,
                                showHeaderInFirstPageCheckBox.Checked, showFooterInFirstPageCheckBox.Checked);

                // Append an external PDF document at the end of the final PDF document
                string pdfFileAfter = Server.MapPath("~/DemoAppFiles/Input/PDF_Files/Merge_After_Conversion.pdf");
                pdfDocument.AppendDocument(pdfFileAfter, addHeaderFooterInAppendedPdfCheckBox.Checked, true, true);

                // 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=Header_Footer_in_External_PDF.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();
            }

            /// <summary>
            /// Add a header to document
            /// </summary>
            /// <param name="pdfDocument">The PDF document object</param>
            /// <param name="drawHeaderLine">A flag indicating if a line should be drawn at the bottom of the header</param>
            private void AddHeader(Document pdfDocument, bool drawHeaderLine)
            {
                string headerHtmlString = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/HTML_Files/Header_HTML.html"));
                string headerBaseUrl = "http://www.evopdf.com/demo/DemoAppFiles/Input/HTML_Files/";

                // Create the document footer template
                pdfDocument.AddHeaderTemplate(60);

                // Create a HTML element to be added in header
                HtmlToPdfElement headerHtml = new HtmlToPdfElement(headerHtmlString, headerBaseUrl);

                // Set the HTML element to fit the container height
                headerHtml.FitHeight = true;

                // Add HTML element to header
                pdfDocument.Header.AddElement(headerHtml);

                if (drawHeaderLine)
                {
                    float headerWidth = pdfDocument.GetPage(0).PageSize.Width;
                    float headerHeight = pdfDocument.Header.Height;

                    // Create a line element for the bottom of the header
                    LineElement headerLine = new LineElement(0, headerHeight - 1, headerWidth, headerHeight - 1);

                    // Set line color
                    headerLine.ForeColor = RgbColor.Gray;

                    // Add line element to the bottom of the header
                    pdfDocument.Header.AddElement(headerLine);
                }
            }

            /// <summary>
            /// Add a footer to document
            /// </summary>
            /// <param name="pdfDocument">The PDF document object</param>
            /// <param name="addPageNumbers">A flag indicating if the page numbering is present in footer</param>
            /// <param name="drawFooterLine">A flag indicating if a line should be drawn at the top of the footer</param>
            private void AddFooter(Document pdfDocument, bool addPageNumbers, bool drawFooterLine)
            {
                string footerHtmlString = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/HTML_Files/Footer_HTML.html"));
                string footerBaseUrl = "http://www.evopdf.com/demo/DemoAppFiles/Input/HTML_Files/";

                // Create the document footer template
                pdfDocument.AddFooterTemplate(60);

                // Set footer background color
                RectangleElement backColorRectangle = new RectangleElement(0, 0, pdfDocument.Footer.Width, pdfDocument.Footer.Height);
                backColorRectangle.BackColor = RgbColor.WhiteSmoke;
                pdfDocument.Footer.AddElement(backColorRectangle);

                // Create a HTML element to be added in footer
                HtmlToPdfElement footerHtml = new HtmlToPdfElement(footerHtmlString, footerBaseUrl);

                // Set the HTML element to fit the container height
                footerHtml.FitHeight = true;

                // Add HTML element to footer
                pdfDocument.Footer.AddElement(footerHtml);

                // Add page numbering
                if (addPageNumbers)
                {
                    // Create a text element with page numbering place holders &p; and & P;
                    TextElement footerText = new TextElement(0, 30, "Page &p; of &P;  ", new PdfFont("Times New Roman", 10, true));

                    // Align the text at the right of the footer
                    footerText.TextAlign = HorizontalTextAlign.Right;

                    // Set page numbering text color
                    footerText.ForeColor = RgbColor.Navy;

                    // Embed the text element font in PDF
                    footerText.EmbedSysFont = true;

                    // Add the text element to footer
                    pdfDocument.Footer.AddElement(footerText);
                }

                if (drawFooterLine)
                {
                    float footerWidth = pdfDocument.GetPage(0).PageSize.Width;

                    // Create a line element for the top of the footer
                    LineElement footerLine = new LineElement(0, 0, footerWidth, 0);

                    // Set line color
                    footerLine.ForeColor = RgbColor.Gray;

                    // Add line element to the bottom of the footer
                    pdfDocument.Footer.AddElement(footerLine);
                }
            }

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

                    pdfBeforeHyperLink.NavigateUrl = rootUrl + "DemoAppFiles/Input/PDF_Files/Merge_Before_Conversion.pdf";
                    pdfAfterHyperLink.NavigateUrl = rootUrl + "DemoAppFiles/Input/PDF_Files/Merge_After_Conversion.pdf";

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

                    Master.CollapseAll();
                    Master.ExpandNode("PDF_Creator");
                    Master.ExpandNode("PDF_Creator_Headers_and_Footers");
                    Master.SelectNode("PDF_Creator_Header_Footer_in_External_PDF");
                }
            }

            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;
                }
            }
        }
    }