xpmtoppm

Convert an X11 pixmap to a PPM image. More information: https://netpbm.sourceforge.net/doc/xpmtoppm.html.

• Convert an XPM image to a PPM image:

xpmtoppm path/to/input_file.xpm > path/to/output_file.ppm

• Store the transparency mask of the input image in the specified file:

xpmtoppm --alphaout path/to/alpha_file.pbm path/to/input_file.xpm > path/to/output_file.ppm