I have been using the information posted here to generate PDF files for invoices (works well btw, thanks!).
My only concern is that the PDF (output file) contains a digital signature (scanned PNG), which can be extracted from the PDF via copy/paste.

Is there a way to automatically protect the pdf file to prevent that? Something along the lines of win2pdf which adds that security to the regular Print to PDF printer objects.
maybe leveraging this feature as a part of the VB script? I am willing to pay for the win2PDF app.

There is a similar product (Apdf) that runs as a service, but a bit more expensive.

Note: I dont want to restrict printing, just copying parts of the PDF.

Thanks in advance,