That depends. If you are like me (anal about scale), you print to the scale and make it work after. But, I believe that to more correctly answer your question, most card models that I've messed with are designed to be printed on A4 or US letter, if you print at 100%. If you have printed everything at the same time, or using the same setting you should be fine. Without knowing more the specifics that is the best I can offer.