pnmpad


SYNOPSIS
       pnmpad [-verbose] [-white|-black]
       [[[-width=width [-halign=ratio]] |
          [-left=leftpad] [-right=rightpad]]]
       [[[-height=height [-valign=ratio]] |
          [-top=toppad] [-bottom=botpad]]]
       [pnmfile]

       All  options  can  be abbreviated to their shortest unique prefix.  You
       may use two hyphens instead of one to designate an option.  You may use
       either  white  space  or  an equals sign between an option name and its
       value.


DESCRIPTION
       Reads a PNM image as input. Outputs a PNM image that is the input image
       plus black or white borders of the sizes specified.

       If  you  just  need to convert an image to a certain size regardless of
       the original dimensions, pnmcut with the -pad option may  be  a  better
       choice.



OPTIONS
       -verbose
              Verbose output.

       -white
       -black (default)
              Set pad color.

       -left leftpad
       -right rightpad
       -top toppad
       -bottom bottompad
              Specify amount of padding in pixels.

       -width width
              Set desired width of image. Overrides -left and -right if speci-
              fied. If width is less  than  the  actual  image  width,  it  is
              ignored. Use pnmcut(1) to cut off parts of images.

       -height height
              Set desired height of image. Overrides -top and -bottom if spec-
              ified. If height is less than the actual  image  height,  it  is
              ignored. Use pnmcut(1) to cut off parts of images.

       -halign ratio
              A  real number between 0 and 1. Used in conjunction with -width,
              sets the alignment ratio between left padding and right padding.

              Useful values:

              0.0    - bottom aligned;

              0.5    - center aligned (default);

              1.0    - top aligned.


HISTORY
       Before February 2002,
              pnmpad  had  a different option syntax which was less expressive
              and not like conventional Netpbm programs.  That syntax is still
              understood  by  pnmpad for backward compatibility, but not docu-
              mented or supported for future use.


SEE ALSO
       pbmmake(1), pnmpaste(1), pnmcut(1), pnmcrop(1), pbm(5)


AUTHOR
       Copyright (C) 2002 by Martin van Beilen
       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.



                                26 January 2002                      pnmpad(1)
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