How to zoom in and out in PS without changing the background?

Tools: (1) computer;

(2)Adobe Photoshop CS6；

In PS, the steps of enlarging and reducing pictures with the same background are as follows:

1. Open the picture to be resized in ps software.

2. Right-click in the title bar of the picture and select the "Move to a new window" option.

3. Use the mobile tool to drag the reduced picture directly onto the white canvas.

4. Press the shortcut key Ctrl+T, and eight small circles will appear around the picture.

5. Hold down the left mouse button and drag the small circle, and you can pull the small picture at will.

6. Adjust the picture to a suitable size, click "Move Tool", a prompt box will pop up, and click "Apply".

7. Image resizing is completed.

In this way, the problem of putting down large pictures in PS without changing the background is solved.