This is very simple, as long as you choose the edit function when you send a picture, you can write on it.

1. Open the group chat page, click the+sign below, and select an album, as shown in the figure:

2. Select a picture and click Preview in the lower left corner, as shown:

3. Then, click Edit in the lower left corner, as shown:

4. Then choose T to write, as shown in the figure:

5. Click on the top right corner to finish after writing, as shown:

6. At this time, click on the lower right corner again to finish, as shown:

7. Click Send after confirming that there is no problem, as shown in the figure:

8. Presentation of results