Select what you want to transform, and do one of the following:
Move tool
Show Transform Controls in Tool Options palette.
Scale
When you move the mouse to a corner, your cursor will turn to a
cursor so that you can perform scaling both horizontally and vertically.
Also you can specify width and height in the transformation palette text boxes.
Rotate
To rotate by dragging, position the pointer outside of the bounding border; when the pointer becomes a
cursor, then drag.
To rotate numerically, enter degrees in the rotation text box or use the Rotation option in the transformation palette text box.
Distort
Distort allows you to stretch a selection in both a horizontal and a vertical position at the same time to go beyond the boundary of the picture.
To use the Distort command, click on the gear icon in the Transform palette, choose Distort, and move corner handle.
Skew
Skew stretches only in either a horizontal or a vertical per drag.
To use the Skew command, click on the gear icon in the Transform palette, choose Skew, and move corner handle.
Perspective
Perspective changes opposite sides of an image equally.
To use the Perspective command, click on the gear icon in the Transform palette, choose Perspective, and move corner handle.