To scan a document with your iPhone or iPad, first place the document on a flat surface in a well-lit area.

Your check engine light can come on a host of reasons, ranging from a loose gas cap to a faulty engine component. If you see a light illuminated on your dashboard, you can use an OBD2 scanner to ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. Scanners normally come in three flavors: flatbed, film and ...