Private Sub convertToPdfButton_Click(ByVal sender As Object, ByVal e As EventArgs) Handles convertToPdfButton.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 page to PDF document Dim pdfPage As PdfPage = pdfDocument.AddPage() Cursor = Cursors.WaitCursor ' Convert HTML to PDF using the settings above Dim outPdfFile As String = "DemoAppFiles\Output\PDF_Creator\Execute_Acrobat_JavaScript.pdf" Try ' Create a HTML to PDF element to add to document Dim htmlToPdfElement As 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) Dim javaScript As String = Nothing If alertMessageRadioButton.Checked Then ' JavaScript to display an alert mesage javaScript = String.Format("app.alert(""{0}"")", alertMessageTextBox.Text) ElseIf printDialogRadioButton.Checked Then ' JavaScript to open the print dialog javaScript = "print()" ElseIf zoomLevelRadioButton.Checked Then ' JavaScript to set an initial zoom level javaScript = String.Format("zoom={0}", Integer.Parse(zoomLevelTextBox.Text)) End If ' Set the JavaScript action pdfDocument.OpenAction.Action = New PdfActionJavaScript(javaScript) ' 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 ' 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