To facilitate the positionings of an upper die and a lower die by providing a positioning means which positions an upper die-holding body to hold the upper die, and a lower die-holding body to hold the lower die, on the top and the bottom of a paper.

At the time of an embossing, first, a lower main body 1 is arranged under a paper P and in the vicinity of a location where the embossing is needed. Then, when an upper main body 3 is brought close to to the position where the emboss treatment is required, an N magnet 1N of the lower main body 1 and an S magnet 3S of the upper main body 3 attract to each other, and at the same time, an S magnet 1S and an N magnet 3N attract to each other. Thus, by the attraction of the magnets, the lower main body 1 is positioned to the upper main body 3, and an upper die 4 and a lower die 2 are made correspond with each other. Then, under that state, a weight is applied to the upper main body 3, and the paper p is firmly pinched by the upper die 4 and the lower die 2. Thus, the paper P is pressed by the protruding part of the lower die 2, and pushed into the recess of the upper die 4, and the paper P is embossed.