TruePDF is the first truly free PDF printer, creator, and writer that quickly create PDF files from virtually any application on Microsoft Windows 7, Vista, 2008, 2003, and XP without the need for GhostScript or Adobe Acrobat.
Very popular JPG image converter that combines basic image editing (resize, crop, rotate, watermark) with batch image conversion to JPG. It also features shell integration and you can convert files right from Windows. Command line supported.
Advanced GIF converter that supports batch mode conversion to GIF file format, basic image editing actions and shell integration. You can call it from another applications or start on scheduled base using
command line support.