Defines, in an extensible manner, syntaxes and methods for the remote interrogation and optional modification of JPEG 2000 codestreams and files in accordance with their definition in the following parts of ISO/IEC 15444: ISO/IEC 15444-1 and its definition of a JPEG 2000 codestream and JP2 file format; and the JPEG 2000 family of file formats as defined in further parts of ISO/IEC 15444. In it, the defined syntaxes and methods are referred to as the JPEG 2000 Interactive Protocol, "JPIP", and interactive applications using JPIP are referred to as "JPIP systems".