In the file reduction option under the file tab. WPSOffice has slimming function, which can reduce the space occupied by files, thus making it easier to store and transfer files. The slimming function of WPSOffice is located in the file slimming option under the file tab. Click the file tab and find the file slimming option in the open interface. Click the file slimming option, select the option to slim down in the open interface, and delete the image object. Click the Start Weight Loss button and wait for the weight loss to be completed.