Office Lens trims, enhances and makes pictures of whiteboards and docs readable, and saves them to OneNote. You can use Office Lens to convert images to PDF, Word and PowerPoint files too. Like magic, it will digitalize notes on whiteboards or blackboards. Always find important documents or business cards. Other apps like Evernote have performed similar functions, but Microsoft has added some impressive tricks to the genre. Use it to scan a whiteboard, blackboard or document, then posted in your online classroom for students to review or send it to their email address with additional notes.