RFC 2083 specifies
version 1.0 of the PNG graphics file format.
It is not an official IETF standard,
but it is a World Wide Web Consortium recommendation
described here (http://www.w3.org/Graphics/PNG/).
It is superseded by later versions of the PNG specification.
External links:
Full text of RFC 2083 (http://www.ietf.org/rfc/rfc2083.txt) PNG (Portable Network Graphics) Specification Version 1.0.Thomas Boutell[?]. March 1997. (Format: TXT=242528 bytes) (Status: INFORMATIONAL)
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