Imply endorsement by W3C and its Members. Publication as a First Public Working Draft does not This document was published by the Portable Network Graphics (PNG) Working Group as It is inappropriate to refer to this specification Publications and the latest revision of this technical report can be found This section describes the status of thisĭocument at the time of its publication. This specification defines two Internet Media Types, image/png and image/apng. Also, PNG can store colour space data for improved colour matching on heterogeneous platforms. PNG is robust, providing both full file integrity checking and simple detection of common transmission errors. 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.

Indexed-colour, greyscale, and truecolour images are supported, plus an optional alpha channel. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. This document describes PNG (Portable Network Graphics), an extensible file format for the lossless, portable, well-compressed storage of static and animated raster images. Open with subject line … message topic … ( archives) Poole Glenn Randers-Pehrson Greg Roelofs Willem van Schaik Guy Schalnat Paul Schmidt Andrew Smith Michael Stokes Vladimir Vukicevic Tim Wegner Jeremy Wohl Feedback: GitHub w3c/PNG-spec Costello Lee Daniel Crocker Andreas Dilger Oliver Fromme Jean-loup Gailly Chris Herborth Alex Jakulin Neal Kettler Tom Lane Alexander Lehmann Chris Lilley ( W3C)ĭave Martindale Owen Mortensen Stuart Parmenter Keith S. Costello David Duce Tom Lane Glenn Randers-Pehrson Authors: Mark Adler Thomas Boutell John Bowler Christian Brunschen Adam M. W3C First Public Working Draft 25 October 2022 More details about this document This version: Latest published version: Latest editor's draft: History: Commit history Editors: Chris Blume Pierre-Anthony Lemieux ( MovieLabs)Ĭhris Seeger ( NBCUniversal, LLC a subsidiary of Comcast Corporation)

Portable Network Graphics (PNG) Specification (Third Edition)

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