2. Then click the "New Group" button on the next line of the folder logo in the above picture, and the name will be created by itself, as shown in the picture I drew. Click the "New Action" button on the right side of the folder under this group, and write "Change Picture Size" in the pop-up dialog box. Don't mess up the keys in the PS here, or the computer will go on strike. Go on to the next step.
3. Open the "File" drop-down menu, open a picture, select "Picture Size" in the "Picture" drop-down menu, enter the picture size parameters you need in the dialog box, and press ctrl+alt+shift+s to save the picture to any storage location, preferably JPG, and then close the picture. These are the steps that will appear in the following figure under the triangle of "changing the picture size" in the above picture;
4. Then magically start, click File-Auto-Batch, and then the batch panel will open. Select my settings in the combination, modify the picture size in the operation, select a folder in the source file, select the folder to change the picture size by selecting the button, select the open command in the overwrite operation, and then click OK.
Matters needing attention
PS Extension: Explain the principle of this process: In fact, this process is a video recording process. You store the action process of changing the picture size in "Changing the picture size", and then apply it to all the pictures in a folder in batch mode, saving yourself endless clicks. Also, the principle of batch processing can be applied to many batch settings, such as color matching and contrast of multiple pictures.