A disclosed gaming machine provides electronic signature capability to enable signature transactions to be effected from the gaming machine. The gaming machine utilizes electronic signature capture and authentication software in conjunction with an electronic signature database to authenticate an electronic signature input on the gaming machine. The authentication software may be co-located with the electronic signature capture software on the gaming machine or may be remotely located from the electronic signature capture software. The electronic signature database may be co-located with either or both the electronic signature capture software and authentication software or may be remotely located from either or both.