The designer could use the measurements in pixels.
Oh a document, I do not believe that you have type on images, but if you were to type a text in a app called PicsArt and saved it and then put it onto the document over the picture it would work.
What is the problem what am I supposed to do?
If you mean sonar it uses echolocation but GPS is signaled from satellite to the internal antenna
import math
num1 = int(input("Enter a number: "))
num2 = int(input("Enter a number: "))
print(math.gcd(num1, num2))
The gcd() - greatest common divisor function, which is part of the math module works perfectly in this situation.