From the app directory listing:
It is also possible to crop, rotate and flip images. An enhanced picture and the EXIF data can be saved to the phone’s pictures hub or shared directly on Facebook, Twitter and other social networks. The app performs the image processing on the original picture in its original resolution, thus making it also possible to print the image or use it as desktop wallpaper.
We reviewed Pictures Lab at the end of 2011, and loved what was on offer:
It's a simple to use application, but the results are stunning. If you want a quick tweak, you can. If you want to spend more time sorting colour levels, sharpness, depth of field effects, and other esoteric subjects, then Pictures Lab will let you throw that challenge at it, and it will deal with it swiftly, smartly, and superbly. Very, very much recommended.
And now it's a little bit better. What more could you want? Pictures Lab is well supported, treats your pictures with care, and is fun to use.