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RedHat 9 (Linux i386) - man page for png (redhat section 5)

PNG(5)				       File Formats Manual				   PNG(5)

NAME
       png - Portable Network Graphics (PNG) format

DESCRIPTION
       PNG  (Portable  Network Graphics) is an extensible file format for the lossless, portable,
       well-compressed storage of raster images. PNG provides a patent-free replacement  for  GIF
       and  can  also  replace	many common uses of TIFF. Indexed-color, grayscale, and truecolor
       images are supported, plus an optional alpha channel. Sample depths range  from	1  to  16
       bits.

       PNG  is	designed to work well in online viewing applications, such as the World Wide Web,
       so it is fully streamable with a progressive display option. PNG is robust, providing both
       full  file  integrity  checking	and fast, simple detection of common transmission errors.
       Also, PNG can store gamma and chromaticity data for improved color matching  on	heteroge-
       neous platforms.

SEE ALSO
       libpng(3),zlib(3),deflate(5),andzlib(5)

       PNG 1.2 specification, July 1999:

	      http://www.libpng.org/pub/png
	      or ftp://ftp.uu.net/graphics/png/documents

       PNG 1.0 specification, October 1996:

	      RFC 2083

	      ftp://ds.internic.net/rfc/rfc2083.txt
	      or (as a W3C Recommendation) at
	      http://www.w3.org/TR/REC-png.html

AUTHORS
       This man page: Glenn Randers-Pehrson

       Portable  Network  Graphics (PNG) Specification Version 1.2 (July 8, 1999): Glenn Randers-
       Pehrson and others (png-list@ccrc.wustl.edu).

       Portable Network Graphics (PNG)	Specification  Version	1.0  (October  1,  1996):  Thomas
       Boutell and others (png-list@ccrc.wustl.edu).

COPYRIGHT NOTICE
       The PNG-1.2 specification is copyright (c) 1999 Glenn Randers-Pehrson.  See the specifica-
       tion for conditions of use and distribution.

       The PNG-1.0 specification is copyright (c) 1996	Massachussets  Institute  of  Technology.
       See the specification for conditions of use and distribution.

					  April 15, 2002				   PNG(5)


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