NAME
    pbmpscale - enlarge a portable bitmap with edge smoothing

SYNOPSIS
    pbmpscale N [ pbmfile ]

DESCRIPTION
    Reads a  portable bitmap as input, and outputs a portable bitmap
    enlarged N times. Enlargement is done by pixel replication, with some
    additional smoothing of corners and edges.

SEE ALSO
   pnmenlarge(1), ppmscale(1), pbm(5)

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

    Permission to use, copy, modify, and distribute this software and its
    documentation for any purpose and without fee is hereby granted, pro-
    vided that the above copyright notice appear in all copies and that
    both that copyright notice and this permission notice appear in sup-
    porting documentation. This software is provided "as is" without
    express or implied warranty.

NOTES
    pbmpscale works best for enlargements of 2. Enlargements greater than 2
    should be done by as many enlargements of 2 as possible, followed by an
    enlargement by the remaining factor.