Electronic documents (including electronic documents, bulletin boards, electronic contracts, electronic orders, electronic instrument, financial statements, etc.) are operated by computer, transmission, storage and processing of digital products, compared with paper files, electronic documents ,the storage volume is small, the retrieval speed is more quick,passing messages over a long distance and at the same time can meet the multi-user sharing, etc.However, with the development of enterprise informatization, we sign or seal documents in the form of paper documents, thus interrupting the information office process.

JIT electronic Signature system mainly adopts digital signature technology to realize the functions of electronic signature and handwritten signature on electronic documents and electronic forms.Through the visual way to achieve the document non-repudiation control, and meet the use of China's habit of official seal, improve the work of information and efficiency.

Electronic signature is more secure, efficient, economical and easier to manage than traditional signature, which can reduce the cost of enterprises and completely realize paperless office.Article 14 of the 《Electronic signature law of the People's Republic of China》 stipulates that "a reliable electronic signature has the same legal effect as a handwritten signature or seal", which provides a legal basis for the electronic signature to be used as the legal identity authentication and the identification of the legal person's behavior in the transaction activities.With the formal implementation of the 《Electronic signature law of the People's Republic of China》 and the rapid development of information technology, it is inevitable for electronic signature to replace the traditional signature.