1)Will you still operate the output stream after executing form.Save()? If not, you could just use the the following constructor, the file will be created and closed simply and correctly:
Dim Label As Form = New Form(“C:\BarCodePrint.pdf”, “C:\BarCodeOutput” & TicketNumber.Text & “.pdf”)
2) If the problem still occurs, please tell me the code of your basic operation about the form and the new output stream. Or send me the complete code and template, i will test it for you.