You can crop and save pictures that are stored in your phone’s internal memory.
Open an album, then tap the picture you want to crop.
Tap the Menu Key to open an Options menu of tools for working with the picture.
Tap Crop.
The cropping box appears on top of the picture.
Use the cropping box to select the portion of the picture to keep; the rest of the photo will be discarded.
Drag from the inside of the cropping box to move it.
Drag an edge of the cropping box to resize it to any proportion.
Drag a corner of the cropping box to resize it with fixed proportions.
Crop box
Adjust the placement and size of the crop box.
Tap OK to save a copy of the picture as you cropped it. The original uncropped version remains in your phone’s memory.