When you’re editing photos in Photoshop, it’s important to keep in mind the “perspective” of the image. You can change the perspective of an image by using the Transform tool, or by using a perspective transform filter. To change the perspective of an image using the Transform tool, first select the image and then use the Transform tool (G) to click and drag one of its corners. The cursor will change to a three-headed arrow, and you can use this arrow to drag the image around. As you move it, Photoshop will display a grid onscreen that shows you where your changes will affect the photo. When you’re finished dragging, release your mouse button. To change the perspective of an image using a perspective transform filter, first select the image and then open its Properties dialog box (Window > Properties). In this dialog box, click on Filters and then on Perspective > PerspectiveTransform. In this dialog box, you’ll see four options: Horizontal (H), Vertical (V), Zoom (Z), and Offset (O). To change the perspective of an image using one of these options, simply enter a value into one of these fields and then click OK. ..