| .TH PNG 5 "February 7, 1998" |
| .SH NAME |
| libpng \- Portable Network Graphics (PNG) format |
| .SH SYNOPSIS |
| [see |
| .I png.h |
| for full description] |
| .SH DESCRIPTION |
| The |
| .I libpng |
| library supports encoding, decoding, and various manipulations of |
| the Portable Network Graphics (PNG) format image files. It uses the |
| .IR zlib(3) |
| compression library. |
| .SH "SEE ALSO" |
| .IR libpng : |
| .IP |
| ftp://ftp.uu.net/graphics/png |
| http://www.cdrom.com/pub/png |
| .LP |
| .IR zlib : |
| .IP |
| (generally) at the same location as |
| .I libpng |
| or at |
| .br |
| ftp://ftp.uu.net/pub/archiving/zip/zlib |
| .br |
| http://www.cdrom.com/pub/infozip/zlib |
| .LP |
| PNG specification: |
| RFC 2083 |
| .IP |
| (generally) at the same location as |
| .I libpng |
| or at |
| .br |
| ftp://ds.internic.net/rfc/rfc2083.txt |
| .br |
| or (as a W3C Recommendation) at |
| .br |
| http://www.w3.org/TR/REC-png.html |
| .SH AUTHORS |
| This man page: R. P. C. Rodgers and Glenn Randers-Pehrson |
| .LP |
| Libpng version 0.99c (February 7, 1998): |
| Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. |
| Currently maintained by Glenn Randers-Pehrson (randeg@alumni.rpi.edu). |
| .LP |
| Supported by the PNG development group |
| .br |
| (png-implement@dworkin.wustl.edu). |
| .LP |
| |
| .SH COPYRIGHT NOTICE |
| Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. |
| .br |
| Copyright (c) 1996, 1997 Andreas Dilger |
| .br |
| Copyright (c) 1998 Glenn Randers-Pehrson |
| .br |
| |
| .LP |
| The PNG Reference Library is supplied "AS IS". The Contributing Authors |
| and Group 42, Inc. disclaim all warranties, expressed or implied, |
| including, without limitation, the warranties of merchantability and of |
| fitness for any purpose. The Contributing Authors and Group 42, Inc. |
| assume no liability for direct, indirect, incidental, special, exemplary, |
| or consequential damages, which may result from the use of the PNG |
| Reference Library, even if advised of the possibility of such damage. |
| .LP |
| Permission is hereby granted to use, copy, modify, and distribute this |
| source code, or portions hereof, for any purpose, without fee, subject |
| to the following restrictions: |
| .br |
| |
| 1. The origin of this source code must not be misrepresented. |
| .br |
| |
| 2. Altered versions must be plainly marked as such and must not be |
| misrepresented as being the original source. |
| .br |
| |
| 3. This Copyright notice may not be removed or altered from any source or |
| altered source distribution. |
| .br |
| |
| .LP |
| The Contributing Authors and Group 42, Inc. specifically permit, without |
| fee, and encourage the use of this source code as a component to |
| supporting the PNG file format in commercial products. If you use this |
| source code in a product, acknowledgment is not required but would be |
| appreciated. |
| |
| .LP |
| The |
| .IR zlib (3) |
| library, version 1.0.8, |
| is copyright (C) 1995-1998 by Jean-loup Gailly and Mark Adler. |
| .LP |
| .\" end of man page |
| |
