You can staple two ways because a stapler has two settings. The first setting is used for a temporary hold. The temporary hold allows the user to pin papers together, but the staple pin doesn’t curl around the paper, which makes it easy to remove the staple later. The second setting is the permanent hold. The permanent hold fastens papers firmly and curls to the back of the papers. When the permanent hold is in place, it will take more precision to remove the staple neatly without roughening the paper.