Materials or tools to be prepared: photoshop software, computer.
1, open the image file to be enlarged and reduced with photoshop software, and click the magnifying glass icon in the toolbar.
2. Then click the zoom icon in the toolbar in the upper right corner, and click the image to enlarge the image, as shown:
3. If you need to reduce the image, select the reduction icon in the upper right toolbar, and then click the image to reduce the image. As shown in the figure: