be done with a macro...
but anyone could get round that by disabling macros.
You could do a screenshot and save it as a graphic... but that wouldn't prevent someone from also taking a screenshot and using OCR on it...
Or I think you can, (with the right software), save it as a PDF that can't be "copied"... thaough the same work round as abovecould be applied.
It depends how "secure" you want to make it... you can't foil them with absolute security.