<human>:  How to manipulate two-dimensional shapes on a computer?
<bot>: To manipulate two-dimensional shapes on a computer, you can use a variety of graphical editing tools such as scaling, rotating, flipping, cropping, skewing, and more. Additionally, there are usually a number of drawing tools available in programs such as Adobe Photoshop, Illustrator and other imaging software, which allow you to draw, erase, and reshape the objects on the screen.