IrfanView is a really quick, small, compact, and modern FREEWARE (for non-commercial use) graphic viewer for Windows. It is trying to be easy for newbies and highly effective for professionals.
IrfanView is a quick, easy freeware image viewer and editor that supports all main graphic formats, together with BMP, DIB, JPEG, GIF, animated GIF, PNG, PCX, multipage TIFF, TGA, and more.
In addition, it features drag-and-drop support, directory viewing, TWAIN support, slide shows, batch conversion, and modifications akin to colour depth, crop, blur, and sharpening.
IrfanView is trying to create new and/or interesting features in its approach, not like other graphic viewers, whose complete “creativity” relies on feature cloning, stealing of concepts, and complete dialogues from ACDSee and/or IrfanView!.