Web image Editor

It's a small project to let the users Resize, Crop and Rotate images. The Image manipulation need to be nice and soft. Source code is needed. Requirements: - Image upload (filter .jpg, .gif, .png and maximum 4 Mb); - Select the target image size, in pixels; - Show a rectangle with the target image size; - The image uploaded must be under the rectangle; - The image showed outside the rectangle border must be alpha 50%; - The toolbar will show Rotate, Crop and Resize Tools; - The Resize tool must be a standard squares on the corners that user drag and drop to resize. PS: There is a sketch attached.