You are correct.
I was a 400x100 sig designer so I "Intended to make this without sharing the concept/idea and shoot for 120.
It came out to be 110 in height. so When I re-do it I'll make it 130 and the anime 180.
I fell old school sig designers like me could add 15 pixel borders.
Why want one?
Imagine a 200DPI doc of your best work...8.5x11
every solid sig you ever made on a single page printed as a photo. print one page ($3.00?) and you're set.
NOTE: don't stretch to fit
This is how I discovered the idea.
Looking for work I had a ton of sigs so I added them to my portfolio and they stole the show. They were so blown away it actually derailed the interview.
They skipped over my trifold brochure work and returned to the stamp like sigs.