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Pnmcat User Manual(0)                                    Pnmcat User Manual(0)



NAME
       pnmcat - concatenate Netpbm images


SYNOPSIS
       pnmcat

       {-leftright | -lr | -topbottom | -tb}

       [-white|-black]

       [-jtop|-jbottom|-jcenter]

       pnmfile ...

       Minimum  unique  abbreviation  of option is acceptable.  You may use double hyphens instead of single hyphen to
       denote options.  You may use white space in place of the equals sign to separate an option name from its value.


DESCRIPTION
       This program is part of Netpbm(1).

       pnmcat reads one or more PNM images as input, concatenates them either left to right or top to bottom, and pro-
       duces a single PNM image as output.

       To assemble a regular grid of images, you can use pamundice.

       To do the reverse, you might use pamdice to split an image up into smaller ones of equal size or pamcut to chop
       off part of an image or extract part of an image.

       pnmtile concatenates a single input image to itself repeatedly.


OPTIONS
       If  the  PNM images are not all the same height (left-right) or width (top-bottom), the smaller ones have to be
       justified with the largest.  By default, pnmcat centers them, but you can specify justification to one side  or
       the  other  with  one  of  the -jxxx options.  So, -topbottom -jleft would stack the PNMs on top of each other,
       flush with the left edge.

       The -white and -black options specify what color to use to fill in the extra space when doing  this  justifica-
       tion.  If neither is specified, pnmcat chooses whichever seems to be right for the images.


SEE ALSO
       pamundice(1), pamdice(1), pnmtile(1), pamcut(1), pnm(1)


AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.



netpbm documentation             01 April 2007           Pnmcat User Manual(0)