HP LaserJet, HP ScanJet - Open-Source Software License Agreements

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boxes and the like:
printf("%s",png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is supplied in the
files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
December 9, 2010
libsamplerate0
The product includes code from libsamplerate0 in binary form. Use of the libsamplerate0
software is governed by the terms of the following licenses: GPLv2+
libsdl2
The product includes code from libsdl2 in binary form. Use of the libsdl2 software is governed by
the terms of the following licenses: Zlib
COPYING.txt:
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
generic_Zlib:
zlib License