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Technical support > Neevia Document Converter Pro code samples
Example 12: Encrypt an existing PDF file (40 bits) from VB.NET  Print Example 

  Dim DC As Object : DC = CreateObject("Neevia.docConverter")

  DC.setParameter( "PDFEncryption", "true" )
  DC.setParameter( "PDFEncryptionType", "40" )

  DC.setParameter( "PDFOwnerPassword", "owner" )
  DC.setParameter( "PDFUserPassword", "open" )

  DC.setParameter( "PDFNoCopyPermission", "true" )
  DC.setParameter( "PDFNoPrintPermission", "true" )
  DC.setParameter( "PDFNoChangePermission", "true" )
  DC.setParameter( "PDFNoAddPermission", "true" )

  Dim RVal As Integer = DC.encryptPDF("c:\in.pdf", "c:\out.pdf")
  DC = Nothing

  If (RVal<>0) Then
    MsgBox("There was an error encrypting the document!!!")
  Else
    MsgBox("Done encrypting !!!")
  End If



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