anytopnm

Convert an arbitrary type of image file to common image formats. More information: https://netpbm.sourceforge.net/doc/anytopnm.html.

• Convert an input image to PBM, PGM, or PPM format irrespective of the input type:

anytopnm path/to/input > path/to/output.pnm

• Display version:

anytopnm -version