From the developer: "ClickPic is an imaging utility for web imaging enthusiasts and professionals. It offers lightening fast thumbnail viewing, resizing, converting and rotating of most common image formats. This is achieved through a windows shell menu interface. After installing ClickPic, simply right click on the image in windows exploring and select the ClickPic menu item. ClickPic creates a new image with the changes in the same directory.

"Features include a one click configurable thumbnail preview, resize images with high quality or fast resampling algorithms perfect for thumbnails, ultra fast and convenient conversions, lossless JPEG rotation, process single or multiple images, optionally retains digital camera metadata (EXIF and IPTC), and launch the default image viewer by clicking on the image."