png14 - Portable Network Graphics (PNG) format
Please see following description for synopsis
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 checking
and fast, simple detection of common transmission errors. Also, PNG can
store gamma and chromaticity data for improved color matching on het-
erogeneous platforms.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------------+
|Availability | image/library/libpng14 |
+---------------+------------------------+
|Stability | Uncommitted |
+---------------+------------------------+
SEE ALSO
libpng(3), libpngpf(3), zlib(3), deflate(5), and zlib(5)
PNG specification (second edition), November 2003:
<http://www.w3.org/TR/2003/REC-PNG-20031110/ PNG 1.2 specifi-
cation, July 1999:
http://png-mng.sourceforge.net/pub/png/spec/1.2/
PNG 1.0 specification, October 1996:
RFC 2083
http://www.ietf.org/rfc/rfc2083.txt
or (as a W3C Recommendation) at
http://www.w3.org/TR/REC-png-961001
AUTHORS
This man page: 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 NOTICE
This man page is 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 distri-
bution.
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/libpng14/1.4.22/libpng-1.4.22.tar.gz.
Further information about this software can be found on the open source
community website at http://www.libpng.org/.
September 28, 2017 PNG(5)