1, go to the CA center to handle the CA lock. CA lock includes electronic signature and electronic signature, which can be used for documents such as PDF, OFD and OFFICE.

2, the third party electronic contract platform, platform selection should be legal and compliant:

The online signing application platform for electronic contracts strictly guarantees that the generated electronic contracts have the same legal effect as the paper contracts according to the requirements of Contract Law, People's Republic of China (PRC) Electronic Signature Law, Technical Specification for the Application of Secure Electronic Signature Encryption Technology and Process Specification for Online Signing of Electronic Contracts.

Electronic signature is a form of electronic signature. Image processing technology is used to transform the electronic signature operation into the same visual effect as the stamping operation of paper documents, and electronic signature technology is used to ensure the authenticity and integrity of electronic information and the non-repudiation of signers. The company's electronic signature can generally be made on the third-party electronic contract platform. The third-party electronic contract platform mainly provides electronic contracts, electronic document signing and certificate storage services for enterprises and individuals. However, because the signing of electronic contracts needs to involve the use of seals, the third-party electronic contract platform can also provide users with electronic signature application and production services.