I have a technical 2d drawing of a papercraft model that I want to share with people online, but I want people to be able to scale it by entering a value for the width or height.

What is the best way to do this? I was thinking that I could use a formula to automatically adjust the width or height and maybe create a 2X2 pixel png (black) and just scale it to create the lines, but the points would have to be moved and I'm not sure how to manage that.

So, perhaps scaling the entire drawing would be easier than generating new lines and origins.

Any suggestions?

Thanks in advance!