Recently, smartphones have allowed us to perform more and more tasks without computers, scanners, or other devices. It's much faster and more convenient. You don't have to get up from the couch or look for places that provide special services. It also helps to save money and free up space on the writing table. Your small mobile device allows you to do many things: connect with friends via social media, follow the news, apply for a job, buy things, even scan documents and make a PDF from photos.