Private Sub createPdfButton_Click(ByVal sender As Object, ByVal e As EventArgs) Handles createPdfButton.Click ' Create a PDF document Dim pdfDocument As 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 Dim pdfPage As PdfPage = pdfDocument.AddPage() Cursor = Cursors.WaitCursor Dim outPdfFile As String = "DemoAppFiles\Output\PDF_Creator\HTML_in_Header_Footer.pdf" Dim htmlToPdfElement As HtmlToPdfElement = Nothing Try ' Add document header If addHeaderCheckBox.Checked Then AddHeader(pdfDocument, drawHeaderLineCheckBox.Checked) End If ' Add document footer If addFooterCheckBox.Checked Then AddFooter(pdfDocument, addPageNumbersInFooterCheckBox.Checked, drawFooterLineCheckBox.Checked) End If ' 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 AddHandler htmlToPdfElement.PrepareRenderPdfPageEvent, AddressOf htmlToPdfElement_PrepareRenderPdfPageEvent ' Optionally add a space between header and the page body ' Leave this option not set for no spacing htmlToPdfElement.Y = Single.Parse(firstPageSpacingTextBox.Text) htmlToPdfElement.TopSpacing = Single.Parse(headerSpacingTextBox.Text) ' Optionally add a space between footer and the page body ' Leave this option not set for no spacing htmlToPdfElement.BottomSpacing = Single.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 Dim outPdfBuffer() As Byte = pdfDocument.Save() ' Write the memory buffer in a PDF file System.IO.File.WriteAllBytes(outPdfFile, outPdfBuffer) Catch ex As Exception ' The PDF creation failed MessageBox.Show(String.Format("Create PDF Document Error. {0}", ex.Message)) Return Finally ' uninstall handler RemoveHandler htmlToPdfElement.PrepareRenderPdfPageEvent, AddressOf htmlToPdfElement_PrepareRenderPdfPageEvent ' Close the PDF document pdfDocument.Close() 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 ''' <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> Private Sub htmlToPdfElement_PrepareRenderPdfPageEvent(ByVal eventParams As PrepareRenderPdfPageParams) ' Set the header visibility in first, odd and even pages If addHeaderCheckBox.Checked Then If eventParams.PageNumber = 1 Then eventParams.Page.ShowHeader = showHeaderInFirstPageCheckBox.Checked ElseIf (eventParams.PageNumber Mod 2) = 0 AndAlso (Not showHeaderInEvenPagesCheckBox.Checked) Then eventParams.Page.ShowHeader = False ElseIf (eventParams.PageNumber Mod 2) = 1 AndAlso (Not showHeaderInOddPagesCheckBox.Checked) Then eventParams.Page.ShowHeader = False End If End If ' Set the footer visibility in first, odd and even pages If addFooterCheckBox.Checked Then If eventParams.PageNumber = 1 Then eventParams.Page.ShowFooter = showFooterInFirstPageCheckBox.Checked ElseIf (eventParams.PageNumber Mod 2) = 0 AndAlso (Not showFooterInEvenPagesCheckBox.Checked) Then eventParams.Page.ShowFooter = False ElseIf (eventParams.PageNumber Mod 2) = 1 AndAlso (Not showFooterInOddPagesCheckBox.Checked) Then eventParams.Page.ShowFooter = False End If End If End Sub ''' <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 Sub AddHeader(ByVal pdfDocument As Document, ByVal drawHeaderLine As Boolean) Dim headerHtmlUrl As String = System.IO.Path.Combine(Application.StartupPath, "DemoAppFiles\Input\HTML_Files\Header_HTML.html") ' Create the document footer template pdfDocument.AddHeaderTemplate(60) ' Create a HTML element to be added in header Dim headerHtml As 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 Then Dim headerWidth As Single = pdfDocument.Header.Width Dim headerHeight As Single = pdfDocument.Header.Height ' Create a line element for the bottom of the header Dim headerLine As 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) End If End Sub ''' <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 Sub AddFooter(ByVal pdfDocument As Document, ByVal addPageNumbers As Boolean, ByVal drawFooterLine As Boolean) Dim footerHtmlUrl As String = 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 Dim backColorRectangle As 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 Dim footerHtml As 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 Then ' Create a text element with page numbering place holders &p; and & P; Dim footerText As New TextElement(0, 30, "Page &p; of &P; ", New Font(New FontFamily("Times New Roman"), 10, 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) End If If drawFooterLine Then Dim footerWidth As Single = pdfDocument.Footer.Width ' 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 pdfDocument.Footer.AddElement(footerLine) End If End Sub