Although you will be out of luck in the very rare situations where the merchant has to fall all the way back to a completely offline transaction on paper. Usual

Although you will be out of luck in the very rare situations where the merchant has to fall all the way back to a completely offline transaction on paper. Usually they use a little plastic roller device that impresses the number onto carbon paper to reduce errors, which is why they were embossed rather than printed in the first place.