File: uri_keyword_20080803a.txt It is proposed to register the following new text keyword for use in PNG files: URI An absolute URI (Uniform Resource Identifier) related to the image. The URI may be accompanied by a text explaining the relationship. Decoders that recognize this keyword should be capable to extract the URI out of the surrounding free-form text, using the absolute URI syntax defined in [RFC 3986|http://tools.ietf.org/html/rfc3986]