You can:
Crop, resize, rotate, compress, flip, flop images.
Add borders, frames, vignettes and various effects.
Convert to black and white.
Remove the background from a scanned document.
Remove EXIF-headers.
Make a screenshot of the website and add any effects.

Automatically color balance, gamma correction.
Automatically stretch the dynamic range between full black and white.
Automatically changes the exposure level of an image by photographic stops to make it either brighter or darker.
Create a unique frame for photos.
You can change the automatic or manual color, size, shape, blur for the frame.