winicontopam

Convert a Windows ICO file to a PAM file. More information: https://netpbm.sourceforge.net/doc/winicontopam.html.

winicontopam path/to/input_file.ico > path/to/output.pam

winicontopam -allimages path/to/input_file.ico > path/to/output.pam

winicontopam -image n path/to/input_file.ico > path/to/output.pam

winicontopam -andmasks path/to/input_file.ico > path/to/output.pam