45 lines
1.4 KiB
Groff
45 lines
1.4 KiB
Groff
.TH PNG 5 "December 29, 1998"
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.SH NAME
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png \- Portable Network Graphics (PNG) format
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.SH DESCRIPTION
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PNG (Portable Network Graphics) is an extensible file format for the
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lossless, portable, well-compressed storage of raster images. PNG provides
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a patent-free replacement for GIF and can also replace many
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common uses of TIFF. Indexed-color, grayscale, and truecolor images are
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supported, plus an optional alpha channel. Sample depths range from
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1 to 16 bits.
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.br
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PNG is designed to work well in online viewing applications, such as the
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World Wide Web, so it is fully streamable with a progressive display
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option. PNG is robust, providing both full file integrity checking and
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fast, simple detection of common transmission errors. Also, PNG can store
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gamma and chromaticity data for improved color matching on heterogeneous
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platforms.
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.SH "SEE ALSO"
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.IR libpng(3), zlib(3), deflate(5), and zlib(5)
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.LP
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PNG specification:
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RFC 2083
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.IP
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.br
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ftp://ds.internic.net/rfc/rfc2083.txt
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.br
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or (as a W3C Recommendation) at
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.br
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http://www.w3.org/TR/REC-png.html
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.SH AUTHORS
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This man page: Glenn Randers-Pehrson
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.LP
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Portable Network Graphics (PNG) Specification Version 1.0 (October 1, 1996):
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Thomas Boutell and others (png-list@dworkin.wustl.edu).
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.LP
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.SH COPYRIGHT NOTICE
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The PNG specification is copyright (c) 1996 Massachussets Institute of
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Technology. See the specification for conditions of use and distribution.
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.LP
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.\" end of man page
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