private void convertToPdfButton_Click(object sender, EventArgs e) { // Create a HTML to PDF converter object with default settings HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter(); // 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="; // Install a handler where to change the header and footer in first page htmlToPdfConverter.PrepareRenderPdfPageEvent += new PrepareRenderPdfPageDelegate(htmlToPdfConverter_PrepareRenderPdfPageEvent); // Add Document Header // Enable header in the generated PDF document htmlToPdfConverter.PdfDocumentOptions.ShowHeader = true; // Draw document header elements if (htmlToPdfConverter.PdfDocumentOptions.ShowHeader) DrawHeader(htmlToPdfConverter, true); // Add Document Footer // Enable footer in the generated PDF document htmlToPdfConverter.PdfDocumentOptions.ShowFooter = true; // Draw document footer elements if (htmlToPdfConverter.PdfDocumentOptions.ShowFooter) DrawFooter(htmlToPdfConverter, true, true); Cursor = Cursors.WaitCursor; string outPdfFile = @"DemoAppFiles\Output\HTML_to_PDF\Change_Header_Footer_Per_Page.pdf"; try { // Convert the HTML page to PDF document in a memory buffer // The PrepareRenderPdfPageEvent event handler will be invoked for each rendered PDF page byte[] outPdfBuffer = htmlToPdfConverter.ConvertUrl(urlTextBox.Text); // Write the memory buffer in a PDF file System.IO.File.WriteAllBytes(outPdfFile, outPdfBuffer); } catch (Exception ex) { // The HTML to PDF conversion failed MessageBox.Show(String.Format("HTML to PDF Error. {0}", ex.Message)); return; } finally { // uninstall handler htmlToPdfConverter.PrepareRenderPdfPageEvent -= new PrepareRenderPdfPageDelegate(htmlToPdfConverter_PrepareRenderPdfPageEvent); Cursor = Cursors.Arrow; } // Open the created PDF document in default PDF viewer try { System.Diagnostics.Process.Start(outPdfFile); } catch (Exception ex) { MessageBox.Show(String.Format("Cannot open created PDF file '{0}'. {1}", outPdfFile, ex.Message)); } } /// <summary> /// The handler for HtmlToPdfConverter.PrepareRenderPdfPageEvent event where you can set the visibility of header and footer /// in each page or you can add a custom header or footer in a page /// </summary> /// <param name="eventParams">The event parameter containin the PDF page to customize before rendering</param> void htmlToPdfConverter_PrepareRenderPdfPageEvent(PrepareRenderPdfPageParams eventParams) { if ((eventParams.PageNumber == 1) && changeHeaderAndFooterCheckBox.Checked) { // Change the header and footer in first page with an alternative header and footer // The PDF page being rendered PdfPage pdfPage = eventParams.Page; // Add a custom header of 80 points in height to this page // The default document header will be replaced in this page pdfPage.AddHeaderTemplate(80); // Draw the page header elements DrawAlternativePageHeader(pdfPage.Header, true); // Add a custom footer of 80 points in height to this page // The default document footer will be replaced in this page pdfPage.AddFooterTemplate(80); // Draw the page header elements DrawAlternativePageFooter(pdfPage.Footer, true, true); } } /// <summary> /// Draw the document header elements /// </summary> /// <param name="htmlToPdfConverter">The HTML to PDF Converter object</param> /// <param name="drawHeaderLine">A flag indicating if a line should be drawn at the bottom of the header</param> private void DrawHeader(HtmlToPdfConverter htmlToPdfConverter, bool drawHeaderLine) { string headerHtmlUrl = System.IO.Path.Combine(Application.StartupPath, @"DemoAppFiles\Input\HTML_Files\Header_HTML.html"); // Set the header height in points htmlToPdfConverter.PdfHeaderOptions.HeaderHeight = 60; // Set header background color htmlToPdfConverter.PdfHeaderOptions.HeaderBackColor = Color.White; // Create a HTML element to be added in header HtmlToPdfElement headerHtml = new HtmlToPdfElement(headerHtmlUrl); // Set the HTML element to fit the container height headerHtml.FitHeight = true; // Add HTML element to header htmlToPdfConverter.PdfHeaderOptions.AddElement(headerHtml); if (drawHeaderLine) { // Calculate the header width based on PDF page size and margins float headerWidth = htmlToPdfConverter.PdfDocumentOptions.PdfPageSize.Width - htmlToPdfConverter.PdfDocumentOptions.LeftMargin - htmlToPdfConverter.PdfDocumentOptions.RightMargin; // Calculate header height float headerHeight = htmlToPdfConverter.PdfHeaderOptions.HeaderHeight; // 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 = Color.Gray; // Add line element to the bottom of the header htmlToPdfConverter.PdfHeaderOptions.AddElement(headerLine); } } /// <summary> /// Draw the document footer elements /// </summary> /// <param name="htmlToPdfConverter">The HTML to PDF Converter 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 DrawFooter(HtmlToPdfConverter htmlToPdfConverter, bool addPageNumbers, bool drawFooterLine) { string footerHtmlUrl = System.IO.Path.Combine(Application.StartupPath, @"DemoAppFiles\Input\HTML_Files\Footer_HTML.html"); // Set the footer height in points htmlToPdfConverter.PdfFooterOptions.FooterHeight = 60; // Set footer background color htmlToPdfConverter.PdfFooterOptions.FooterBackColor = Color.WhiteSmoke; // Create a HTML element to be added in footer HtmlToPdfElement footerHtml = new HtmlToPdfElement(footerHtmlUrl); // Set the HTML element to fit the container height footerHtml.FitHeight = true; // Add HTML element to footer htmlToPdfConverter.PdfFooterOptions.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 System.Drawing.Font(new System.Drawing.FontFamily("Times New Roman"), 10, System.Drawing.GraphicsUnit.Point)); // Align the text at the right of the footer footerText.TextAlign = HorizontalTextAlign.Right; // Set page numbering text color footerText.ForeColor = Color.Navy; // Embed the text element font in PDF footerText.EmbedSysFont = true; // Add the text element to footer htmlToPdfConverter.PdfFooterOptions.AddElement(footerText); } if (drawFooterLine) { // Calculate the footer width based on PDF page size and margins float footerWidth = htmlToPdfConverter.PdfDocumentOptions.PdfPageSize.Width - htmlToPdfConverter.PdfDocumentOptions.LeftMargin - htmlToPdfConverter.PdfDocumentOptions.RightMargin; // Create a line element for the top of the footer LineElement footerLine = new LineElement(0, 0, footerWidth, 0); // Set line color footerLine.ForeColor = Color.Gray; // Add line element to the bottom of the footer htmlToPdfConverter.PdfFooterOptions.AddElement(footerLine); } } /// <summary> /// Draw the alternative page header elements /// </summary> /// <param name="headerTemplate">The page header template</param> /// <param name="drawHeaderLine">A flag indicating if a line should be drawn at the bottom of the header</param> private void DrawAlternativePageHeader(Template headerTemplate, bool drawHeaderLine) { string headerHtmlUrl = System.IO.Path.Combine(Application.StartupPath, @"DemoAppFiles\Input\HTML_Files\Header_Alt_HTML.html"); // Create a HTML element to be added in header HtmlToPdfElement headerHtml = new HtmlToPdfElement(headerHtmlUrl); // Set the HTML element to fit the container height headerHtml.FitHeight = true; // Add HTML element to header headerTemplate.AddElement(headerHtml); if (drawHeaderLine) { float headerWidth = headerTemplate.Width; float headerHeight = headerTemplate.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 = Color.Gray; // Add line element to the bottom of the header headerTemplate.AddElement(headerLine); } } /// <summary> /// Draw the alternative page footer elements /// </summary> /// <param name="htmlToPdfConverter">The HTML to PDF Converter 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 DrawAlternativePageFooter(Template footerTemplate, bool addPageNumbers, bool drawFooterLine) { string footerHtmlUrl = System.IO.Path.Combine(Application.StartupPath, @"DemoAppFiles\Input\HTML_Files\Footer_Alt_HTML.html"); // Create a HTML element to be added in footer HtmlToPdfElement footerHtml = new HtmlToPdfElement(footerHtmlUrl); // Set the HTML element to fit the container height footerHtml.FitHeight = true; // Add HTML element to footer footerTemplate.AddElement(footerHtml); // Add page numbering if (addPageNumbers) { // Create a text element with page numbering place holders &p; and & P; TextElement footerText = new TextElement(10, 30, "Page &p; of &P;", new System.Drawing.Font(new System.Drawing.FontFamily("Times New Roman"), 10, System.Drawing.GraphicsUnit.Point)); // Align the text at the right of the footer footerText.TextAlign = HorizontalTextAlign.Left; // Set page numbering text color footerText.ForeColor = Color.Navy; // Embed the text element font in PDF footerText.EmbedSysFont = true; // Add the text element to footer footerTemplate.AddElement(footerText); } if (drawFooterLine) { float footerWidth = footerTemplate.Width; // Create a line element for the top of the footer LineElement footerLine = new LineElement(0, 0, footerWidth, 0); // Set line color footerLine.ForeColor = Color.Gray; // Add line element to the bottom of the footer footerTemplate.AddElement(footerLine); } }