This feature will be very necessary for that product that is very small and need to be zoomed for being readable, if will be posssible to start with an individual setting of -- x (like 5.0 or what you want) the product will be readable, visible but the image size, font size are real and right with the output you create.
If now we create a canvas size much greater for being readable, the font size, in example, are wrong, are much much bigger then the real.
Did you find any solution to this?
I have the same situation, the product is small and therefore it is difficult to read on larger screens. Being able to resize/zoom would definitely help.