So I was making a design for a backdrop which has the size of 10ft x 17ft (120inx204in) And I am having a problem because the file is tooooo large that even my pc is unresponsive.
I saw a tip that says to create smaller preset of the same ratio and design there. May I ask if how do I exactly convert it to a smaller preset? (how do I find the same ratio)
And any advice about working with larger files in photoshop?