PicShrink a tool with which you compress your photos as much as you want so that they can take a lot less space.
To do this, you want to compress images that "the process." You must drag the window (they could be worth several folders), and then click Configure parameters to your liking, it's easy.
You can target a variety of program options to format (JPG,, PNG, GIF, BMP, or TIFF), compression values (from 0% to 100%), even brightness, sharpness and contrast will allow you to change. All this is very appealing to the eye that can do anything from the intuitive interface.
PicShrink works very well, although the lowest level of image compression is to reduce the excessive and does not make up for losing weight.