NAME
    pbmtoascii - convert a portable bitmap into ASCII graphics

SYNOPSIS
    pbmtoascii [-1x2|-2x4] [pbmfile]

DESCRIPTION
    Reads a  portable bitmap as input. Produces a somewhat crude ASCII
    graphic as output.

    Note that there is no asciitopbm tool - this transformation is one-way.

OPTIONS
    The -1x2 and -2x4 flags give you two alternate ways for the bits to get
    mapped to characters. With 1x2, the default, each character represents
    a group of 1 bit across by 2 bits down. With -2x4, each character rep-
    resents 2 bits across by 4 bits down. With the 1x2 mode  you can see
    the individual bits, so it's useful for previewing small bitmaps on a
    non-graphics terminal. The 2x4 mode lets you display larger bitmaps on
    a standard 80-column display, but it obscures bit-level details. 2x4
    mode is also good for displaying graymaps - "pnmscale -width 158 | pgm-
    norm | pgmtopbm -thresh" should give good results.

SEE ALSO
    pbm(5)

AUTHOR
    Copyright (C) 1988, 1992 by Jef Poskanzer.