The operation method of adding text to WeChat pictures is as follows:

1. Open WeChat and select a chat partner to enter the chat interface.

2. Click the "+" in the lower right corner of the chat interface and select the photo.

3. Select a photo to which text needs to be added and click the edit option in the lower left corner.

4. Select the third "T" shaped text box option.

5. Enter the text you need to add and select save.