FreeImage is an Open Source library project for developers who would like to support popular graphics image formats like PNG, BMP, JPEG, TIFF and others as needed by today's multimedia applications. FreeImage is easy to use, fast, multithreading safe, compatible with all 32-bit versions of Windows, and cross-platform (works both with Linux and Mac OS X).
Thanks to it's ANSI C interface, FreeImage is usable in many languages including C, C++, VB, C#, Delphi, Java and also in common scripting languages such as Perl, Python, PHP, TCL or Ruby.
The library comes in two versions: a binary DLL distribution that can be linked against any WIN32 C/C++ compiler and a source distribution. Workspace files for Microsoft Visual C++ 6 are provided, as well as makefiles for Linux, Mac OS X and Solaris 9.
Release 3.5.1 is a maintenance release that fixes a bug in the (widely used) FreeImage_Clone function and also some other bugs with the TIFF plugin. Lastly, this distribution includes a new Delphi wrapper. As for the QT wrapper, you will now find it in the Source Code section of this site.
FreeImage can be downloaded from: http://freeimage.sourceforge.net