Electronic signature refers to the process of signing electronic documents with electronic seals, which is a form of electronic signature. Electronic signature uses image processing technology to transform the electronic signature operation into the same visual effect as the stamping operation of paper documents, and at the same time uses electronic signature technology to ensure the authenticity and integrity of electronic information and the undeniable nature of the signer.

Electronic seal technology is to simulate the traditional physical seal with advanced digital technology, and its management and use are in line with the habits and experiences of physical seals. An electronic document stamped with a seal has the same appearance, the same effect and similar usage as a paper document stamped with a physical seal.