If you go that route, most people can't tell the difference between a person's signature and a different person faking their signature.

By the way, in Spain printed-signed-scanned wouldn't be legally valid either, unless a notary has seen the original and can certify that it coincides with their own handwritten signature. Otherwise it's either original handwritten signature, or digital signature in a digital PDF file, or printed digital signature with a secure validation code that you can verify in some URL.

Aside the point but I can generally tell. With PDF signatures they’re either too smooth on the lines (that’s what mine is) or there’s some artifacting on the signature.

> Show me someone who can tell the difference between pasting a signature in a pdf vs printed-signed-scanned?

One challenge with potentially invalid documents - when agreements go south and disgruntled employees get a free wrench to toss into the works.

Another motivator is not wanting to risk cheesing off judges.

source: Once prepped federal cases