Mike Sorrentino is a Senior Editor for Mobile, covering phones, texting apps and smartwatches -- obsessing about how we can make the most of them. Mike also keeps an eye out on the movie and toy ...

If you receive a PDF or other digital file that requires your signature, you can easily do so using your phone. Whether you use an iPhone or an Android phone, both include built-in options for adding ...

PDF handling on the iPhone and iPad has vastly improved over the last year or so. Not only can you scan documents as PDFs using the camera, you can sign documents and send them off to the recipient, ...