It is easy to scan or capture an image of a signature, apply colors, apply dithering to mimic a shaky hand, variants etc etc. For pen and ink some stealth detection techniques can be used. There needs to be a snail-mail form. Pre-printed stationary can have subtle changes to particular font characters or inter character spaces can be varied....if the form is forged it can be detected by trained visual inspection....now who knows how to do the equivalent electronically.
Slashdot Mirror
It is easy to scan or capture an image of a signature, apply colors, apply dithering to mimic a shaky hand, variants etc etc. For pen and ink some stealth detection techniques can be used. There needs to be a snail-mail form. Pre-printed stationary can have subtle changes to particular font characters or inter character spaces can be varied....if the form is forged it can be detected by trained visual inspection ....now who knows how to do the equivalent electronically.