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Updated: Wednesday, February 9, 2022
 
 

png16 (5)

Name

png16 - Portable Network Graphics (PNG) format

Synopsis

Please see following description for synopsis

Description

PNG(5)                        File Formats Manual                       PNG(5)



NAME
       png - Portable Network Graphics (PNG) format


DESCRIPTION
       PNG  (Portable  Network  Graphics) is an extensible file format for the
       lossless, portable, well-compressed storage of raster images.  PNG pro-
       vides a patent-free replacement for GIF, and can also replace many com-
       mon uses of TIFF. Indexed-color, grayscale, and  truecolor  images  are
       supported,  plus an optional alpha channel.  Sample depths range from 1
       to 16 bits.
       PNG is designed to work well in online viewing  applications,  such  as
       the  World  Wide Web, so it is fully streamable with a progressive dis-
       play option.  PNG is robust, providing both full file integrity  check-
       ing  and  fast,  simple detection of common transmission errors.  Also,
       PNG can store gamma and chromaticity data for improved  color  matching
       on heterogeneous platforms.



ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------------+
       |ATTRIBUTE TYPE |    ATTRIBUTE VALUE     |
       +---------------+------------------------+
       |Availability   | image/library/libpng16 |
       +---------------+------------------------+
       |Stability      | Uncommitted            |
       +---------------+------------------------+

SEE ALSO
       libpng(3), libpngpf(3), zlib(3), deflate(5), and zlib(5)

       PNG Specification (Second Edition), November 2003:

              https://www.w3.org/TR/2003/REC-PNG-20031110/

       PNG 1.2 Specification, July 1999:

              https://png-mng.sourceforge.io/pub/png/spec/1.2/

       PNG 1.0 Specification, October 1996:

              RFC 2083
              https://www.ietf.org/rfc/rfc2083.txt

              or W3C Recommendation
              https://www.w3.org/TR/REC-png-961001


AUTHORS
       This man page: Cosmin Truta, Glenn Randers-Pehrson

       Portable Network Graphics (PNG) Specification (Second Edition) Informa-
       tion technology - Computer graphics and  image  processing  -  Portable
       Network  Graphics  (PNG): Functional specification.  ISO/IEC 15948:2003
       (E) (November 10, 2003): David Duce and others.

       Portable Network Graphics (PNG)  Specification  Version  1.2  (July  8,
       1999): Glenn Randers-Pehrson and others (png-list).

       Portable  Network  Graphics (PNG) Specification Version 1.0 (October 1,
       1996): Thomas Boutell and others (png-list).


COPYRIGHT
       This man page is
       Copyright (c) 2018-2019 Cosmin Truta.
       Copyright (c) 1998-2006 Glenn Randers-Pehrson.
       See png.h for conditions of use and distribution.

       The PNG Specification (Second Edition) is
       Copyright (c) 2003 W3C. (MIT, ERCIM, Keio), All Rights Reserved.

       The PNG-1.2 Specification is
       Copyright (c) 1999 Glenn Randers-Pehrson.
       See the specification for conditions of use and distribution.

       The PNG-1.0 Specification is
       Copyright (c) 1996 Massachusetts Institute of Technology.
       See the specification for conditions of use and distribution.



NOTES
       Source code for open source software components in Oracle  Solaris  can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source        was        downloaded        from         https://source-
       forge.net/projects/libpng/files/libpng16/1.6.37/libpng-1.6.37.tar.gz.

       Further information about this software can be found on the open source
       community website at http://www.libpng.org/.



                                April 14, 2019                          PNG(5)