\
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.TH "Pbmpscale User Manual" 0 "03 October 2003" "netpbm documentation"

.SH NAME

pbmpscale - enlarge a PBM image with edge smoothing

.UN synopsis
.SH SYNOPSIS

\fBpbmpscale\fP
\fIN\fP
[\fIpbmfile\fP]

.UN description
.SH DESCRIPTION
.PP
This program is part of
.BR Netpbm (1)
.
.PP
\fBpbmpscale\fP reads a PBM image as input, and outputs a PBM
image enlarged N times.  \fBpbmpscale\fP does this enlargement by
pixel replication, with some additional smoothing of corners and
edges.


.UN seealso
.SH SEE ALSO
.BR pamenlarge (1)
,
.BR pamscale (1)
,
.BR pamstretch (1)
,
.BR pbm (5)



.UN author
.SH AUTHOR

Copyright (C) 1990 by Angus Duggan
Copyright (C) 1989 by Jef Poskanzer.
.PP
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.

.UN notes
.SH NOTES
.PP
\fBpbmpscale\fP works best for enlargements of 2. To do
enlargements greater than 2, you should do as many enlargements of 2 as
possible, then enlarge by the remaining factor.