1, Meitu Xiu Xiu cannot batch P pictures. The best software to reduce a large number of pictures should be Photoshop, or ps for short. You can search, download and install the software online.

2. The specific method of batch drawing by 2.ps software is as follows

(1) Open the picture file to be processed, and then click the "Window" menu to open the "Action" panel;

(2) Click the triangle button on the right side of the action panel and select "New Action" from the pop-up menu;

(3) In the New Action panel, name the action and click the Record button. The "Start Recording" round button at the bottom of the "Actions" panel will be pressed and turned red, and PS will start recording actions;

(4) "Open image-image size" to adjust the image size;

(5) "File-Save As" sets the picture format to jpg format and saves it;

(6) Stop recording, and click the square "Stop Playing/Recording" button at the bottom of the Action panel to end the action recording; (7) Run batch processing, open other photos to be processed, click Set new action name, and the computer will automatically help you complete all the task of changing pictures.