Wechat personalized signature can only write 30 words at most, which is the limit set by the WeChat team when developing the program, so it cannot be increased. The steps for setting personalized signature of WeChat are as follows: 1. First find the software shortcut, click to open the software, then click the "I" icon in the lower right corner to enter the personal center 2, and then click your avatar directly to enter the "Personal Information" 3. Now you can see the "Personal Signature" menu in the last line of your personal information, but you haven't set a personalized signature yet. Click Open Settings. 4. Enter your personal signature. Be careful not to be too long here. There is a word limit. When you are finished, click Save. Now you can find that when you return to your personal information, you have successfully set your personal signature. 6. When you return to your circle of friends, you will find your personal signature displayed under your avatar.