ppmtopcx
Convert a PPM image to a PCX file. More information: https://netpbm.sourceforge.net/doc/ppmtopcx.html.
- Convert a PPM image to a PCX file:
ppmtopcx path/to/file.ppm > path/to/file.pcx
- Produce a PCX file with the specified color depth:
ppmtopcx -8bit|24bit path/to/file.ppm > path/to/file.pcx