A folding device (14′, 14″) includes a driven contact device (15′, 15″) configured for continuously creating a fold in a moving article (12) during an operative folding mode of the folding device. In the operative folding mode, the article moves along a base plane in a motion direction (MD). The folding device includes a support structure (54) connected to, and configured for supporting, the contact device. The contact device includes a peripheral surface (48) which extends at least partially about at least one rotation axis. The peripheral surface includes multiple fingers (44) which protrude outwardly away therefrom. In the operative folding mode, the fingers consecutively and incrementally engage and fold the article starting at an edge (28) defining an outline thereof.