Image filter file created by Pixel Bender Toolkit, an application used for creating custom image filters for Flash applications, Photoshop, and other Adobe products; contains byte code (executable binary code) that has been compiled from a .PBK file; used for performing image manipulations such as blurs, pixelations, fades, and twirls. PBJ files can be used in Adobe Flash Player applications since Flash Player includes the Pixel Bender runtime. PBJ files can be dynamically loaded using ActionScript, the language that drives Flash applications.