Whether you need to scan family photos, piles of documents, or expense receipts, a scanner out there is built for the task. Here's how to shop for the right one, plus the top performers in our lab ...

The equivalent ISO paper size used in much of the rest of the world is A3 size, or 297 by 420 millimeters (mm), which works out to roughly 11.69 by 16.54 inches.

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