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ppmtogif(1)							   ppmtogif(1)

       ppmtogif - convert a portable pixmap into a GIF file

       ppmtogif [-interlace] [-sort] [-map mapfile] [-transparent color] [ppm‐

       Reads a portable pixmap as input.  Produces a GIF file as output.

	      Tells the program to produce an interlaced GIF file.

       -sort  Produces a GIF file with a sorted color map.

       -map   mapfile

	      Uses the colors found in the mapfile to create the  colormap  in
	      the  GIF	file, instead of the colors from ppmfile.  The mapfile
	      can be any ppm file; all that matters is the colors  in  it.  If
	      the  colors  in ppmfile do not match those in mapfile , they are
	      matched to a  "best  match".  A  (much)  better  result  can  be
	      obtained by using the following filter in advance:

	      ppmquant -floyd -map mapfile

       -transparent color
	      Mark  the given color as transparent in the GIF file.  The color
	      is specified as in ppmmake(1).  Note that this option outputs  a
	      GIF89a  format  file which might not be understood by your soft‐

       All flags can be abbreviated to their shortest unique prefix.

       giftoppm(1), ppmquant(1), ppm(5)

       Based on GIFENCOD by David Rowley <mgardi@watdcsu.waterloo.edu>.	  Lem‐
       pel-Ziv compression based on "compress".

       Copyright (C) 1989 by Jef Poskanzer.

				 30 June 1993			   ppmtogif(1)

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