Convert DCX to PNM

The DCX file extension, standing for ZSoft Multi-page Paintbrush Image, is a raster image format developed by ZSoft Corporation. It is primarily used for creating multi-page digital fax files, containing a sequence of PCX images. Each DCX file begins with a small header identifying the file, followed by multiple embedded PCX files. This format was widely adopted in early digital faxing and document imaging applications due to its ability to handle multiple pages within a single file.

The PNM (Portable Anymap) file extension, developed by Jef Poskanzer in the 1980s, stands for Portable Any Map. It is an uncompressed raster graphics format designed for portable image storage and exchange, encompassing three sub-formats: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PNM files store image data in plain text or binary format, ensuring easy usage across different platforms and applications. This format is widely supported by various image editing software and is valued for its simplicity and lossless compression.