Kroppr - image cropper script - V2.0 / 2011 release
Kroppr is intended to allow users to manipulate the images available on a website. There are plenty of online image cropping scripts that are used to create avatars, scale or crop images, for photo resize and photo crop - but, on top of that, Kroppr offers image rotation and some other features without any plugin required (Flash or Java).
New in V2.0
Now you can set the script's language using a simple JSON file configuration.
You can lock the cropping area to a preset size or force it to keep the aspect ratio on resize.
Save on the Server
Post-processing the image in your own PHP script is now possible (like saving the image, insert in a database or whatever your needs are).
There are a few more settings you can configure: Image Delegation, Opacity, Background Color, etc. Check the Features list
The installation is very easy and the changes needed to an existent and already launched site are minimal - from the design point of view there is no difference.
Kroppr is using the graphic tools found on a common hosting server so an expensive server is not required for this script to run. At the same time, if there are more image processing packages on the server, Kroppr is choosing the one with the best results in terms of quality and server load.
The script allows you to crop a big image on the server side while showing in the browser a smaller version of that image in order to save bandwidth.
The realtime operations - rotate or zoom - will enhance the user experience because only one operation - the final image crop - is sent to the server. This way we improve the user experience (the user can preview the results in real time and make the cropping when ready) and minimize the server load.