Your Android phone has a built-in scanner, fax machine, and measuring tape

Your Android phone has a built-in scanner, fax machine, and measuring tape – How-To Geek
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 emails) into a PDF file, extract text from photos, and more.