Electronic signature integrates digital signature, image acquisition, image synthesis, large-screen display, information statistics, interactive lottery, real-time printing and other technologies, so its uses include high-definition photography, handwritten signature, intelligent seating, large-screen display, interactive lottery, statistical browsing and so on. Give users a more scientific and humanized check-in function, and you can also print your own check-in photos on the spot. Remember to adopt me when you are satisfied/cute.