No need. The electronic signature has already recorded the automatic printing record and atlas of the date, and manual signature and writing are not required. Electronic signature refers to the data contained in the data message in electronic form, which is used to identify the identity of the signer and show that the signer approves its content. Electronic signature is the electronic signature of electronic documents through cryptographic technology, rather than the digital visualization of written signatures. It is similar to a handwritten signature or seal, and it can also be said to be an electronic seal.