wet signature

wet signature (plural wet signatures)

1. A physical signature on a document, typically done in ink.
   • 2009, Ted Padova, Angie Okamoto, PDF Forms Using Acrobat and LiveCycle Designer Bible, John Wiley & Sons, →ISBN, page 323:

     A wet signature on an electronic form might be a scanned image of your analog signature. If you use a wet signature that's not part of a digital ID, the signature carries no validity, verification, security, or authenticity.

• electronic signature
• digital signature