Private Sub convertToPdfButton_Click(ByVal sender As Object, ByVal e As EventArgs) Handles convertToPdfButton.Click ' Create a HTML to PDF converter object with default settings Dim htmlToPdfConverter As 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 = Single.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 Dim htmlStringWithPageNumbers As String = htmlWithPageNumbersTextBox.Text Dim baseUrl As String = baseUrlTextBox.Text Dim footerHtmlWithPageNumbers As 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 Then ' Calculate the footer width based on PDF page size and margins Dim footerWidth As Single = htmlToPdfConverter.PdfDocumentOptions.PdfPageSize.Width - htmlToPdfConverter.PdfDocumentOptions.LeftMargin - htmlToPdfConverter.PdfDocumentOptions.RightMargin ' Create a line element for the top of the footer Dim footerLine As 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) End If Cursor = Cursors.WaitCursor ' Convert HTML to PDF using the settings above Dim outPdfFile As String = "DemoAppFiles\Output\HTML_to_PDF\Page_Numbers_in_HTML.pdf" Try ' Convert the HTML page to a PDF document in a memory buffer Dim outPdfBuffer() As Byte = htmlToPdfConverter.ConvertUrl(urlTextBox.Text) ' Write the memory buffer in a PDF file System.IO.File.WriteAllBytes(outPdfFile, outPdfBuffer) Catch ex As Exception ' The HTML to PDF conversion failed MessageBox.Show(String.Format("HTML to PDF Error. {0}", ex.Message)) Return Finally Cursor = Cursors.Arrow End Try ' Open the created PDF document in default PDF viewer Try Process.Start(outPdfFile) Catch ex As Exception MessageBox.Show(String.Format("Cannot open created PDF file '{0}'. {1}", outPdfFile, ex.Message)) End Try End Sub