.TH macptopbm 1 "29 March 1989"
.IX macptopbm
.SH NAME
macptopbm - convert a MacPaint file into a portable bitmap
.SH SYNOPSIS
.B macptopbm
.RB [ -extraskip
.IR N ]
.RI [ macpfile ]
.SH DESCRIPTION
Reads a MacPaint file as input.
.IX MacPaint
.IX Macintosh
Produces a portable bitmap as output.
.SH OPTIONS
.TP
.B -extraskip
This flag is to get around a problem with some methods
of transferring files from the Mac world to the Unix world.
Most of these methods leave the Mac files alone, but a few of
them add the "finderinfo" data onto the front of the Unix file.
This means an extra 128 bytes to skip over when reading the file.
The symptom to watch for is that the resulting PBM file looks shifted
to one side.
If you get this, try
.B -extraskip
128, and if that still doesn't look right try another value.
.PP
All flags can be abbreviated to their shortest unique prefix.
.SH "SEE ALSO"
picttoppm(1), pbmtomacp(1), pbm(5)
.SH AUTHOR
Copyright (C) 1988 by Jef Poskanzer.
.\" Permission to use, copy, modify, and distribute this software and its
.\" documentation for any purpose and without fee is hereby granted, provided
.\" that the above copyright notice appear in all copies and that both that
.\" copyright notice and this permission notice appear in supporting
.\" documentation.  This software is provided "as is" without express or
.\" implied warranty.
The MacPaint-reading code is copyright (c) 1987 by Patrick J. Naughton
(naughton@wind.sun.com).
.\" Permission to use, copy, modify, and distribute this software and its
.\" documentation for any purpose and without fee is hereby granted,
.\" provided that the above copyright notice appear in all copies and that
.\" both that copyright notice and this permission notice appear in
.\" supporting documentation.