private void convertToPdfButton_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 page to PDF document PdfPage pdfPage = pdfDocument.AddPage(); // Set the PDF Viewer Preferences // Set page layout to continuous one column, single page, two column left, two column right pdfDocument.ViewerPreferences.PageLayout = SelectedPageLayout(); // Set page mode to default, display attachments, display thumbnails, display attachments pdfDocument.ViewerPreferences.PageMode = SelectedPageMode(); // Hide the viewer menu pdfDocument.ViewerPreferences.HideMenuBar = hideMenuBarCheckBox.Checked; // Hide the viewer toolbar pdfDocument.ViewerPreferences.HideToolbar = hideToolbarCheckBox.Checked; // Hide scroll bars and navigation controls pdfDocument.ViewerPreferences.HideWindowUI = hideWindowUICheckBox.Checked; // Display the document title in viewer title bar pdfDocument.ViewerPreferences.DisplayDocTitle = displayDocTitleCheckBox.Checked; Cursor = Cursors.WaitCursor; string outPdfFile = @"DemoAppFiles\Output\PDF_Creator\Set_PDF_Viewer_Preferences.pdf"; try { // Create a HTML to PDF element to add to document HtmlToPdfElement htmlToPdfElement = new HtmlToPdfElement(urlTextBox.Text); // Optionally set a delay before conversion to allow asynchonous scripts to finish htmlToPdfElement.ConversionDelay = 2; // Add the HTML to PDF element to document 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)); } }