Mixed raster content
Mixed raster content (MRC) is a method for compressing images that contain both binary-compressible text and continuous-tone components, using image segmentation methods to improve the level of compression and the quality of the rendered image. By separating the image into components with different compressibility characteristics, the most efficient and accurate compression algorithm for each component can be applied.

MRC-compressed images are typically packaged into a hybrid file format such as PDF. This allows for multiple images, and the instructions to properly render and reassemble them, to be stored within a single file.