--- OLD/ppm/pcxtoppm.1	Thu Jan  1 00:00:00 1970
+++ NEW/ppm/pcxtoppm.1	Thu Jan  1 00:00:00 1970
@@ -5,6 +5,7 @@
 .SH SYNOPSIS
 .B pcxtoppm
 .RB [ -stdpalette ]
+.RB [ -pgm ]
 .RI [ pcxfile ]
 .SH DESCRIPTION
 Reads a PCX file as input.
@@ -29,6 +30,10 @@
 .TP
 .B -stdpalette
 Enforce the use of the internal colormap for files with 16 colors or less.
+.TP
+.B -pgm
+With a 256-colour colourmapped file, write a PGM file whose pixel
+values are the colourmap indices, ignoring all colourmaps.
 .SH "SEE ALSO"
 ppmtopcx(1), ppm(5)
 .SH AUTHORS
@@ -41,4 +46,3 @@
 .\" copyright notice and this permission notice appear in supporting
 .\" documentation.  This software is provided "as is" without express or
 .\" implied warranty.
-