1. Electronic signature: the signature and seal operations are completed by electronic signature software. In this way, you need to register your account on the electronic signature platform first, then upload the documents that need to be signed, and then sign and stamp the documents. Finally, you and the other party can view the signed documents through the electronic signature platform, which has legal effect.

2. Digital certificate: A digital certificate is an electronic identity, which can be used for identity authentication, signature and encryption. Remote signature and seal can be completed by using digital certificate. You need to apply for a certificate in a digital certificate issuing agency first, and then install digital certificate software on your computer or mobile phone, and use the digital certificate to complete the signature and seal operation, which has legal effect.