.PCX File Extension

Raster image format developed by ZSoft; became one of the original bitmap image formats for the DOS/Windows platform; supports 24-bit color images, 8-bit grayscale and indexed color images, and 1-bit black and white images; compressed using RLE encoding.

The PCX file format has mostly been replaced by newer image formats, but is still used by some fax and scanning applications. Multi-page PCX fax documents use the .DCX extension.