2. Find the page containing the rice husk poster in the slide and select it.
3. Find the Insert tab in the toolbar, and find the Picture button in the Insert tab.
4. Select the new character picture to add, and then click Insert.
5. Move and resize the new character picture to fit the original character position.
7. You can also use the editing function provided by WPS to adjust the brightness and contrast to optimize the new character picture.
8. Confirm the replacement is completed, save and preview the slide to ensure that the new character picture has been successfully replaced.