There’s a lot of confusion about how and when to increase image size using Photoshop. I thought I’d clear things up by offering the rules I use:
Increasing Image Size in Photoshop
Rule 1 – Don’t do it.
Rule 2 – See Rule 1.
Rule 3 – If you must ignore rules 1 and 2, keep increase small.
Rule 4 – If you have to ignore rules 1, 2 and 3, keep your own name off the work and give credit/blame to someone else.
Rule 5 – If you have to ignore rules 1, 2, 3 and 4, change your name, leave the country and become a monk somewhere.