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2 This copy of the libpng notices is provided for your convenience. In case of
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3 any discrepancy between this copy and the notices in the file png.h that is
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4 included in the libpng distribution, the latter shall prevail.
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5
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6 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
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7
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8 If you modify libpng you may insert additional notices immediately following
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9 this sentence.
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10
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11 This code is released under the libpng license.
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12
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13 libpng versions 1.2.6, August 15, 2004, through 1.5.4, July 7, 2011, are
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14 Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
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15 distributed according to the same disclaimer and license as libpng-1.2.5
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16 with the following individual added to the list of Contributing Authors
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17
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18 Cosmin Truta
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19
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20 libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
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21 Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
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22 distributed according to the same disclaimer and license as libpng-1.0.6
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23 with the following individuals added to the list of Contributing Authors
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24
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25 Simon-Pierre Cadieux
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26 Eric S. Raymond
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27 Gilles Vollant
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28
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29 and with the following additions to the disclaimer:
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30
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31 There is no warranty against interference with your enjoyment of the
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32 library or against infringement. There is no warranty that our
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33 efforts or the library will fulfill any of your particular purposes
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34 or needs. This library is provided with all faults, and the entire
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35 risk of satisfactory quality, performance, accuracy, and effort is with
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36 the user.
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37
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38 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
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39 Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
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40 distributed according to the same disclaimer and license as libpng-0.96,
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41 with the following individuals added to the list of Contributing Authors:
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42
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43 Tom Lane
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44 Glenn Randers-Pehrson
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45 Willem van Schaik
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46
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47 libpng versions 0.89, June 1996, through 0.96, May 1997, are
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48 Copyright (c) 1996, 1997 Andreas Dilger
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49 Distributed according to the same disclaimer and license as libpng-0.88,
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50 with the following individuals added to the list of Contributing Authors:
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51
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52 John Bowler
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53 Kevin Bracey
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54 Sam Bushell
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55 Magnus Holmgren
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56 Greg Roelofs
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57 Tom Tanner
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58
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59 libpng versions 0.5, May 1995, through 0.88, January 1996, are
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60 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
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61
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62 For the purposes of this copyright and license, "Contributing Authors"
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63 is defined as the following set of individuals:
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64
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65 Andreas Dilger
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66 Dave Martindale
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67 Guy Eric Schalnat
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68 Paul Schmidt
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69 Tim Wegner
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70
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71 The PNG Reference Library is supplied "AS IS". The Contributing Authors
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72 and Group 42, Inc. disclaim all warranties, expressed or implied,
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73 including, without limitation, the warranties of merchantability and of
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74 fitness for any purpose. The Contributing Authors and Group 42, Inc.
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75 assume no liability for direct, indirect, incidental, special, exemplary,
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76 or consequential damages, which may result from the use of the PNG
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77 Reference Library, even if advised of the possibility of such damage.
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78
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79 Permission is hereby granted to use, copy, modify, and distribute this
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80 source code, or portions hereof, for any purpose, without fee, subject
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81 to the following restrictions:
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82
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83 1. The origin of this source code must not be misrepresented.
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84
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85 2. Altered versions must be plainly marked as such and must not
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86 be misrepresented as being the original source.
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87
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88 3. This Copyright notice may not be removed or altered from any
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89 source or altered source distribution.
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90
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91 The Contributing Authors and Group 42, Inc. specifically permit, without
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92 fee, and encourage the use of this source code as a component to
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93 supporting the PNG file format in commercial products. If you use this
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94 source code in a product, acknowledgment is not required but would be
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95 appreciated.
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96
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97
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98 A "png_get_copyright" function is available, for convenient use in "about"
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99 boxes and the like:
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100
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101 printf("%s",png_get_copyright(NULL));
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102
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103 Also, the PNG logo (in PNG format, of course) is supplied in the
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104 files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
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105
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106 Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
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107 certification mark of the Open Source Initiative.
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108
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109 Glenn Randers-Pehrson
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110 glennrp at users.sourceforge.net
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111 July 7, 2011
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