Authors and contributors: (code) John M Bell, James Bursa, Matthew Hambley, Rob Jackson, Phil Mellor, Philip Pemberton, Andrew Timmins, John Tytgat, Richard Wilson; (graphics, documentation & translations) Bruno D'Arcangeli, Michael Drake, Andrew Duffell, Jérôme Mathevet.
| © 1996–2004, Daniel Stenberg | |
| IJG JPEG library | This software is based in part on the work of the Independent JPEG Group © 1991–1998, Thomas G. Lane |
| OpenSSL | © 1998–2004 The OpenSSL Project © 1995–1998 Eric A. Young, Tim J. Hudson |
| OSLib | © 1994–2002 Jonathan Coxhead and OSLib maintainers |
| libpng | © 1998–2002 Glenn Randers-Pehrson © 1996, 1997 Andreas Dilger © 1995, 1996 Guy Eric Schalnat, Group 42, Inc. |
| © 1998–2003 Daniel Veillard | |
| zlib | © 1995–2002 Jean-loup Gailly and Mark Adler |