from Alex: If you are using a professional print shop then the PDf is all set up for printing already. It needs to be printed double sided on A2 and then chopped down on the sides where the lines are marked. Because of the 3mm bleed around the edges you will get about 9 (3 across by 3 down) from each sheet of A2.
I suggest printing only badges with names + badges without names (for late arrivals who’ll write their names on spot).
I am still thinking how it’s best to proceed with Bios with biographies -which are only 60 and we wanted to use for the interviewers challenge. But I might put them to better use, so not for now.