In this step-by-step tutorial, learn how you can get and use the best FREE Document Scanner app for both iPhone and Android. This app makes it easy to scan a document to your phone and to your computer. Microsoft Lens (formerly Microsoft Office Lens) trims, enhances, and makes pictures of whiteboards and documents readable and clear. You can use Microsoft Lens to convert images to PDF, Word, PowerPoint, and Excel files, digitize printed or handwritten text, and save to OneNote, OneDrive, or your local device. You can even import images that are already on your device using Gallery.