GIMP is a versatile graphics manipulation package. The GIMP (GNU Image Manipulation Program) is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
It has many capabilities. It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, an image format converter, etc.
Calibre is a free and open source e-book library management application developed by users of e-books for users of e-books.
It has a cornucopia of features divided into the following main categories: Library Management E-book conversion Syncing to e-book reader devices Downloading news from the web and converting it into e-book form Comprehensive e-book viewer Content server for online access to your book collection
Multi Commander is a multi-tabbed file manager that is an alternative to the standard Windows Explorer. It uses the very popular and efficient dual-panel layout. Multi Commander has a everything you need in your daily works with files to make your work fast and efficient. Multi Commander portable (32 and 64 bit)