SumatraPDF contains code by:

* Alexander Klenin
* Củ Văn Chuối (mrchuoi at gmail.com)
* David Lopez
* Danilo Roascio
* Jarkko Pöyry
* Krzysztof J. Kowalczyk  (https://blog.kowalczyk.info)
* Ludo Brands
* Matthew Wilcoxson (matthew.wilcoxson at gmail.com)
* Nathan Jhaveri
* Peter Astrand
* Robert Liu
* Robert Prouse (rprouse at gmail.com)
* Simon Bünzli (zeniko at gmail.com, https://www.zeniko.ch/#SumatraPDF)
* Stefan Stefanov (userchefo at gmail.com)
* Tom Clegg
* vadmium at gmail.com
* Vasily Fomin (vasili.fomin at gmail.com)
* Victor Kozyakin
* William Blum (william.blum at gmail.com, https://william.famille-blum.org/)

Most code under src is licensed as GPL v3 (see COPYING) with the main
exception of code in src/utils and src/mui which has a BSD license
(see COPYING.BSD). Due to mupdf/COPYING, section 13 of the AGPL v3
applies to SumatraPDF as well.

Icons by Zenon, Sonke Tesch, George Georgiou, Robert Hegner,
FAMFAMFAM and Yusuke Kamiyamane.

Windows program icon (gfx/SumatraPDF*.png, gfx/SumatraPDF.ico) by
Alex (koo.studios at gmail.com, old address: zenon38 at gmail.com).
License: CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/).

Translations by various translators (see TRANSLATORS).

External projects are by their various authors:

Project        License                   Type Website
---------------------------------------------------------------------------------------------------------
MuPDF          mupdf/COPYING             AGPL https://mupdf.com/
bzip2          ext/bzip2/LICENSE              https://bzip.org/
CHMLIB         ext/CHMLib/COPYING        LGPL https://www.jedrea.com/chmlib/
FreeType       ext/freetype2/FTL.txt          https://www.freetype.org/
jbig2dec       ext/jbig2dec/COPYING      AGPL https://www.ghostscript.com/jbig2dec.html
libjpeg-turbo  ext/.../README-turbo.txt  BSD  https://libjpeg-turbo.virtualgl.org/
DjVuLibre      ext/libdjvu/COPYRIGHT     GPL  https://djvu.sourceforge.net/
OpenJPEG       ext/openjpeg/LICENSE      BSD  https://www.openjpeg.org/
SyncTeX        ext/.../synctex_parser.c       https://itexmac.sourceforge.net/SyncTeX.html
zlib           ext/zlib/zlib.h                https://www.zlib.net/
lzma           ext/lzma/lzma.txt              https://www.7-zip.org/sdk.html
libwebp        ext/libwebp/COPYING       BSD  https://developers.google.com/speed/webp/
unarr          ext/unarr/COPYING         LGPL https://github.com/zeniko/unarr

CMap Resources mupdf/.../cmaps/README         https://sourceforge.net/adobe/cmap/home/Home/
XySSL          mupdf/.../crypt-aes.c     BSD  https://en.wikipedia.org/wiki/PolarSSL#History
Arcfour        mupdf/.../crypt-arc4.c         https://tools.ietf.org/html/draft-kaukonen-cipher-arcfour-01
RSA's MD5      mupdf/.../crypt-md5.c          https://tools.ietf.org/html/rfc1321
Android        mupdf/.../droid/NOTICE    APL  https://www.droidfonts.com/
Poppler        mupdf/.../pdf-annot.c     GPL  https://poppler.freedesktop.org/
ezgdi          mupdf/.../pdf-ft-tools.c  GPL  https://code.google.com/p/ezgdi/

Fugue Icons    CC BY 3.0                      https://p.yusukekamiyamane.com/