Free software on your phone or tablet lets you scan, create, edit, annotate and even sign digitized documents on the go. By J. D. Biersdorfer I write the monthly Tech Tip column, which is devoted to ...

Modern Android phones have a number of built-in utilities aside from the ones we've all heard of and used, like the torch. Some of these tools allow you to convert any photo (as well as webpages and ...