It is easy to crop your image to the right clipping.
To crop an image:
To move an image you can grab any visible portion of the image, the white knob will even be visible when the image is obscured by another object.
By default Posterino will preserve the image aspect ratio if you change the size of an image. If you like to distort your image, hold down the Shift key while moving a size knob.
You can end the cropping process by pressing
, or .