I remember trying to print a jpg on a plotter at work a year or so ago. I remember the print preview being worthless as even though it looked ok there, it would be wrong when the plotter started to print. Work laptop didn't really have a whole lot of software installed at the time. I think i just kept playing around with the margins until it finally worked. I just don't remember the specific app i used to perform the actual print. I'll try asking around at work tomorrow to see what they use.