Add JavaScript Action in PDF - VB.NET
PDF SDK sample in VB.NET demonstrating ‘Add JavaScript Action in PDF’
Program.vb
Imports Bytescout.PDF
''' <summary>
''' This example demonstrates how to add JavaScript actions to document events.
''' </summary>
Class Program
Shared Sub Main()
' Create new document
Dim pdfDocument = New Document()
pdfDocument.RegistrationName = "demo"
pdfDocument.RegistrationKey = "demo"
' If you wish to load an existing document uncomment the line below And comment the Add page section instead
' pdfDocument.Load(".\existing_document.pdf")
' Add page
pdfDocument.Pages.Add(New Page(PaperFormat.A4))
' Add action to document open event
Dim onOpenDocument = New JavaScriptAction("app.alert(""OnOpenDocument"",3)")
pdfDocument.OnOpenDocument = onOpenDocument
' Add action to document close event
Dim onBeforeClosing = New JavaScriptAction("app.alert(""OnBeforeClosing"",3)")
pdfDocument.OnBeforeClosing = onBeforeClosing
' Save document to file
pdfDocument.Save("result.pdf")
' Cleanup
pdfDocument.Dispose()
' Open document in default PDF viewer app
Process.Start("result.pdf")
End Sub
End Class
Resources.Designer.vb
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