It is a great piece of software that is easy to use for beginners and so powerful that many professionals use it also.
The program lets you open and edit images, as well as multiple media formats. You can cut and crop images, apply batch conversions, add, sharpen, or blur effects, create panoramas, and change color modes easily. The program continues to add support for an array of file formats and has plug-in support for most image, video, and sound formats, including MP3, AVI, audio CD, and WMA. The interface is far from fancy but should be easy enough for most users to figure out. An IrfanView Thumbnails shortcut on the desktop offers an Explorer-like file tree that quickly displays all images in a particular folder.
To find out more about IfranView and also download this awesome piece of software here is the home page for IrfanView