PGX (Portfolio)

PGX is a raster and character graphics format for Atari Portfolio computers. It supports multiple images per file, and animation.

PGX files usually can contain images in PGT format or PGC format (except without the 3-byte PGC file header).

Identification
A PGX file begins with the ASCII string " ".

Specifications

 * Specification for the PGX file format

Software

 * Konvertor
 * Deark can extract the embedded PGC files.
 * Rest7 Online Image Converter

Sample files

 * http://www.atari-portfolio.co.uk/library/pages/tx-animat.html
 * https://telparia.com/fileFormatSamples/image/pgx/