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        RFC 2083:

        Title:      PNG (Portable Network Graphics) Specification
                    Version 1.0
        Author:     T. Boutell, et. al.
        Date:       January 1997
        Mailbox:    boutell@boutell.com
        Pages:      102
        Characters: 242520
        Updates/Obsoletes: None

        URL:        ftp://ds.internic.net/rfc/rfc2083.txt


This document describes PNG (Portable Network Graphics), an
extensible file format for the lossless, portable, well-compressed
storage of raster images. This specification defines the Internet
Media Type image/png. 

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does not specify an Internet standard of any kind.  Distribution of
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Joyce K. Reynolds and Mary Kennedy
USC/Information Sciences Institute