The SDK is a software toolkit for the development of industry equipment for the electronic sign-off market. The Software Toolkit contains a range of components for popular programming languages to quickly integrate sign-off devices into customer applications.

Static and dynamic handwritten signature acquisition is a major feature of the SDK and a major advantage of industrial devices in financial markets. Static signature refers to the user signature image captured in the traditional paperless business, which is a relatively early stage of application. In recent years, dynamic signatures have arisen, and biometric data such as speed, acceleration, and pressure during the signature process are acquired simultaneously when the user signature is acquired. Biometric data is difficult to imitate, and related artificial intelligence recognition algorithms are actively seeking commercial use, which will be an inevitable trend in the development of electronic signatures in the future.