The name of the signature file of 1. Baidu Post Bar is a user-defined name, which is convenient for you to choose when posting and using the signature file.

2. Baidu Post Bar provides users with the function of editing and using signature files. After three months of registration, when you log in and post, the signature file option will appear below the mailbox. You can check "Use signature file" and then choose the signature file set to use.