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44 lines
1.4 KiB
44 lines
1.4 KiB
.TH PNG 5 "March 9, 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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