You think your diploma is different from the principal's signature on your degree certificate. And then make sure it's really different. This is just how you feel. The font is not quite the same as your classmate's. You have to be further sure to know whether it will affect the future. As long as it is the signature of the principal, there is an official seal and the official seal of the school, this situation is true. You don't have to worry about this font anymore. Now your graduation certificate can be found online. This certificate is only in my own hands and can be found online. Your school.