Because the size of the avatar in the WeChat interface is specified according to the UI design! Including the length of the signature, too long will exceed the length of the interface, and the display effect is not beautiful, so the product manager fully considered a lot when designing!

This is a limit set by the WeChat team when developing the program, so it cannot be increased.

The steps to set the personalized signature of WeChat are as follows:

1. First find the software shortcut, click to open the software, and then click the "I" icon in the lower right corner to enter the personal center.

2. Then click on the avatar directly to enter "Personal Information".

Now you can see the "Personal Signature" menu in the last line of your personal information. You have not set your personal signature. Click "Open" to make 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, if you go back to your personal information, you can find that your personalized signature has been successfully set.

6. When you return to your circle of friends, you can now find your personal signature displayed under your avatar.