ppmtoppm

Copy a PPM image. More information: https://netpbm.sourceforge.net/doc/ppmtoppm.html.

• Copy a PPM image (i.e. a PBM, PGM or PPM image) from stdin to stdout:

ppmtoppm < path/to/image.ppm > path/to/output.ppm

• Display version:

ppmtoppm -version