A laminating film has at least a surface layer and an adhesive layer deposited on a substrate, wherein the surface layer is provided by applying a coating made by blending together at least two types of emulsions. Emulsion polymers included in the emulsions may have different glass transition temperatures. A laminating method using the laminating film includes the steps of press-bonding the laminating film to a printed matter at a temperature not less than the glass transition temperature of the emulsion polymer with the higher glass transition temperature, and separating the laminating film from the printed matter thereafter.