PGX (JPEG 2000)

File Format
Name	PGX (JPEG 2000)
Ontology	Electronic File Formats Graphics PGX (JPEG 2000) ; ; ;
Extension(s)	.pgx

PGX is an uncompressed raster image file format used in JPEG 2000 conformance testing, and said to be used by the "JPEG 2000 Verification Model".

A PGX file stores only a single component, so it is limited to grayscale unless multiple PGX files are combined to make a color image.

Identification

PGX files begin with ASCII characters "PG ML", or "PG LM".