If you are running your blog or site and you use several different sizes of one image (thumb, medium, big) you know how much time you loose in preparing images for web. Probably you have some script for auto cropping but very often it crop wrong part of the picture. jUploader is combination of auto and manual cropping functions, it is easy to set auto crop options (unlimited different sizes of one image) and if the wrong part of picture is cropped you can manually crop desired part of image ( using AJAX – no page reloading). jUploader uses php class for managaing images and this package contains php ready file for crop, resize, watermark or apply some effects on all images from one folder to another