ximtoppm
Convert a XIM file to a PPM image. More information: https://netpbm.sourceforge.net/doc/ximtoppm.html.
- Convert an XIM image to a PPM image:
ximtoppm {{path/to/input_file.xim}} > {{path/to/output_file.ppm}}
- Store the transparency mask of the input image in the specified file:
ximtoppm --alphaout {{path/to/alpha_file.pbm}} {{path/to/input_file.xim}} > {{path/to/output_file.ppm}}