1Pnmcat User Manual(0)                                    Pnmcat User Manual(0)
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NAME

6       pnmcat - concatenate Netpbm images
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SYNOPSIS

10       pnmcat
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12       {-leftright | -lr | -topbottom | -tb}
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14       [-white|-black]
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16       [-jtop|-jbottom|-jcenter] [-jleft|-jright|-jcenter]
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18       pnmfile ...
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20       Minimum  unique abbreviation of option is acceptable.  You may use dou‐
21       ble hyphens instead of single hyphen to denote options.   You  may  use
22       white space in place of the equals sign to separate an option name from
23       its value.
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DESCRIPTION

27       This program is part of Netpbm(1).
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29       pnmcat reads one or more PNM images as input, concatenates them  either
30       left to right or top to bottom, and produces a single PNM image as out‐
31       put.
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33       The arguments are names of input files.  Any one of these, but not more
34       than  one, may be "-" to indicate Standard Input.  If you have no argu‐
35       ments, that means a single input image from Standard Input (and that is
36       pointless - the output is the same as the input).
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38       To assemble a regular grid of images, you can use pamundice.
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40       To  do  the  reverse,  you  might use pamdice to split an image up into
41       smaller ones of equal size or pamcut to chop off part of  an  image  or
42       extract part of an image.
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44       pnmtile concatenates a single input image to itself repeatedly.
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OPTIONS

48       If  the  PNM  images  are not all the same height (left-right) or width
49       (top-bottom), the smaller ones have to be justified with  the  largest.
50       By  default,  pnmcat centers them, but you can specify justification to
51       one side or the other with one of the -jxxx  options.   So,  -topbottom
52       -jleft  would  stack the PNMs on top of each other, flush with the left
53       edge.  -leftright -jbottom would line up the images left to right  with
54       their bottom edges aligned as if sitting on a table.
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56       The  -white and -black options specify what color to use to fill in the
57       extra space when doing this justification.  If  neither  is  specified,
58       pnmcat chooses whichever seems to be right for the images.
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SEE ALSO

62       pamundice(1), pamdice(1), pnmtile(1), pamcut(1), pnm(1)
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AUTHOR

66       Copyright (C) 1989 by Jef Poskanzer.
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DOCUMENT SOURCE

69       This  manual  page was generated by the Netpbm tool 'makeman' from HTML
70       source.  The master documentation is at
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72              http://netpbm.sourceforge.net/doc/pnmcat.html
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74netpbm documentation              30 May 2011            Pnmcat User Manual(0)
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