So the picture requirements is plain and simple 50 mm wide X 70 mm. My wife needs to send all " spouse sponsor ship papers to the MAIL physically ". can she just print the picture i gave her to the authorities ? or she needs to go to a commercial studio to print it out there ? I took the picture following all the requirements and send it to her on " email ". can she just print on the printer or she needs to print at a commercial studio ?