How to adjust the image aspect ratio?

To adjust the image aspect ratio, please follow the steps below:

1. Start scanning. After proceeding to the next step, the page processing screen will appear.
2. Drag any edge of the orange box to move it inward or outward.
   You can also top the image to zoom in and edit the orange box.
3. Tap on the aspect ratio button to show the aspect ratio popover.
4. You can also choose the format or page size of the document by tapping the arrow on the top right of the popup.
   For example, if you scan a business card, you can select the "Business Card" as its page size.
5. Then, drag the image edges to fill the page.You can tap on the orientation button to toggle the orientation.
6. Tap on the "OK" button to accept the changes.