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How to scan with your tablet computer
Get yourself a way to elevate and hold your device at a steady height.
Technically, you can just hold it and do it, but if you are going to scan more than a couple of items, you want it held for you. Here is a box that is about 13-14 inches (33.0-35.6 cm) deep.
Remove at least one side of the box. You will need to light up what you are scanning.