After you have taken a picture of the receipt, you can crop the size of the picture with the cropping tool. You recognize the cropping tool by the frames around the picture. The application tries to recognize the edges of the receipt and borders the receipt automatically. If you want to edit the cropping area, tap the corner of the frame, and drag it to specify the area.
When you have defined the cropping area, tap Done button.
If you want to take a new picture, tap Retake button.
Cropping receipts helps the further processing of the receipt in accounting.