[Roscoe]

As far as I am aware, most developers permit the installation of their software on more than one computer, providing that only one copy of the programme is being used at any one time. To be on the safe side I'd suggest you submit a support ticket to clarify this. Anthropics don't monitor this forum 24/7 so if you open the programme, click on Help > Support you'll be taken to the right place to submit a ticket.

http://www.portraitprofessional.com/support/