private void createPdfButton_Click(object sender, EventArgs e) { // Create a PDF document Document pdfDocument = new Document(); // 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 = "fvDh8eDx4fHg4P/h8eLg/+Dj/+jo6Og="; // Add a PDF page to PDF document PdfPage pdfPage = pdfDocument.AddPage(); Cursor = Cursors.WaitCursor; string outPdfFile = @"DemoAppFiles\Output\PDF_Creator\Change_Header_Footer_Per_Page.pdf"; HtmlToPdfElement htmlToPdfElement = null; try { // 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 = new HtmlToPdfElement(0, 0, urlTextBox.Text); // Optionally set a delay before conversion to allow asynchonous scripts to finish htmlToPdfElement.ConversionDelay = 2; // Install a handler where to change the header and footer in pages generated by the HTML to PDF element htmlToPdfElement.PrepareRenderPdfPageEvent += new PrepareRenderPdfPageDelegate(htmlToPdfElement_PrepareRenderPdfPageEvent); // Add the HTML to PDF element to document // This will raise the PrepareRenderPdfPageEvent event where the header can be changed per page pdfPage.AddElement(htmlToPdfElement); // Save the PDF document in a memory buffer byte[] outPdfBuffer = pdfDocument.Save(); // Write the memory buffer in a PDF file System.IO.File.WriteAllBytes(outPdfFile, outPdfBuffer); } catch (Exception ex) { // The PDF creation failed MessageBox.Show(String.Format("Create PDF Document Error. {0}", ex.Message)); return; } finally { // uninstall handler htmlToPdfElement.PrepareRenderPdfPageEvent -= new PrepareRenderPdfPageDelegate(htmlToPdfElement_PrepareRenderPdfPageEvent); // Close the PDF document pdfDocument.Close(); 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 HtmlToPdfElement.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 htmlToPdfElement_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> /// 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 headerHtmlUrl = System.IO.Path.Combine(Application.StartupPath, @"DemoAppFiles\Input\HTML_Files\Header_HTML.html"); // Create the document header template pdfDocument.AddHeaderTemplate(60); // 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 pdfDocument.Header.AddElement(headerHtml); if (drawHeaderLine) { float headerWidth = pdfDocument.Header.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 = Color.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 footerHtmlUrl = System.IO.Path.Combine(Application.StartupPath, @"DemoAppFiles\Input\HTML_Files\Footer_HTML.html"); // 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 = Color.WhiteSmoke; pdfDocument.Footer.AddElement(backColorRectangle); // 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 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 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 pdfDocument.Footer.AddElement(footerText); } if (drawFooterLine) { float footerWidth = pdfDocument.Footer.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 pdfDocument.Footer.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); } }