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="; // 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; // Enable footer in the generated PDF document htmlToPdfConverter.PdfDocumentOptions.ShowFooter = true; // Optionally add a space between footer and the page body // Leave this option not set for no spacing htmlToPdfConverter.PdfDocumentOptions.BottomSpacing = float.Parse(footerSpacingTextBox.Text); // Set the footer height in points htmlToPdfConverter.PdfFooterOptions.FooterHeight = 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 htmlToPdfConverter.PdfFooterOptions.AddElement(footerHtmlWithPageNumbers); // Optionally draw a line at the top of the footer if (drawFooterLineCheckBox.Checked) { // 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); } Cursor = Cursors.WaitCursor; // Convert HTML to PDF using the settings above string outPdfFile = @"DemoAppFiles\Output\HTML_to_PDF\Page_Numbers_in_HTML.pdf"; try { // Convert the HTML page to a PDF document in a memory buffer 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 { 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)); } }