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Portable Network Graphics Specification 

05-28-2021 03:55 PM

This document describes PNG (Portable Network Graphics), 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.

URL for Resource: https://www.w3.org

Formal Name/Title (ISO, ANSI): ISO/IEC 15948:2003 (E)

Alternative Name/Title: Portable Network Graphics (PNG) Specification (Second Edition): Information technology- computer graphics and image processing - Portable Network Graphics (PNG); Functional specification ISO/IEC 15948:2003 (E)

Standards Creating / Publishing Body: WC3 Recommendation

Date of Creation: 1996

Date of Latest Revision: November 10, 2003

Current Version (Color, Name, Number): Second Edition

Date Resource Added/Modified: March 07, 2018


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