Google has quietly made a useful tweak to document scanning functionality on Android phones. Here's what to expect.

An optical scanner geared to office documents rather than photographs ... are scanned simultaneously. "Personal document scanners" are low-speed, portable models that accept one sheet of paper ...

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 ...