more recently by Nels Anvik, who oversaw ACDSee Pro 2.5 through to Pro 5. The original ACDSee software was created by David Hooper, who also added a number of features to ACDSee Pro, such as Lighting correction (formerly known as Shadows and Highlights) and Develop Mode (in version 2.0). ACDSee Pro is written in C++, with the interface built using MFC. Free version In August 2012, ACD Systems released ACDSee Free, which retains all viewing features for the most common image formats (BMP, GIF, JPEG, PNG, TGA, TIFF, WBMP, PCX, PIC, WMF, EMF); it lacks a thumbnail browser, and support for RAW and ICO formats. A reviewer at BetaNews found it "fast, configurable and easy to use". The version runs on Windows XP or newer. Product was discontinued in August 2013. See also Comparison of image viewers References External links Image organizers Windows-only shareware 1994 software