The invention provides a laminating apparatus and an image forming apparatus. Two laminating films are placed on an upper paper feeding cassette and a manual feed tray, respectively, and a medium to be laminated is placed on a lower paper feeding cassette. These two laminating films are once stopped by coming in contact with a standby conveyance roller pair in a stopped state and the lamination target medium is stopped by being interposed between the two laminating films. Then, the two laminating films and the lamination target medium are integrally conveyed to a fuser by the standby conveyance roller pair and subjected to lamination processing by being heated and pressurized by the fuser.