Information security equipment

The utility model relates to information security equipment, in particular to information security equipment to keep secret to printed documents. The information security equipment comprises a paper inlet, a sealing paper inlet, an aligning module, a heating and sealing module and an encrypted document outlet, wherein the paper inlet receives a paper to be encrypted; a sealing paper, the periphery of which is provided with high-temperature glue, enters into the sealing paper inlet; the paper to be encrypted is parallel with the sealing paper in the aligning module; the paper to be encrypted and the sealing paper, which are parallel with each other, enter into the heating and sealing module to be heated up; and the paper to be encrypted and the sealing paper are completely glued with each other and outputted from the encrypted document outlet. The sealing paper is covered at the surface of the paper to be encrypted, the sealing can be fused after being heated up to +130 DEG C, the paper to be encrypted and the