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; // Convert HTML to PDF using the settings above string outPdfFile = @"DemoAppFiles\Output\PDF_Creator\Page_Numbers_in_HTML.pdf"; try { // Create the document footer template pdfDocument.AddFooterTemplate(50); // ----- Add HTML with Page Numbering to Footer ----- // Create a variable HTML element with page numbering string htmlStringWithPageNumbers = htmlWithPageNumbersTextBox.Text; string baseUrl = baseUrlTextBox.Text; HtmlToPdfVariableElement footerHtmlWithPageNumbers = new HtmlToPdfVariableElement(htmlStringWithPageNumbers, baseUrl); // Set the HTML element to fit the container height footerHtmlWithPageNumbers.FitHeight = true; // Add variable HTML element with page numbering to footer pdfDocument.Footer.AddElement(footerHtmlWithPageNumbers); // Optionally draw a line at the top of the footer if (drawFooterLineCheckBox.Checked) { 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); } // 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; // Optionally add a space between footer and the page body // Leave this option not set for no spacing htmlToPdfElement.BottomSpacing = float.Parse(footerSpacingTextBox.Text); // Add the HTML to PDF element to document // This will raise the PrepareRenderPdfPageEvent event where the header and footer visibilit per page can be changed 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 { // 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)); } }