Yes you can. I do it all the time for school. Have OneNote open, open the PDF you want to import, swipe from the right to get your charms bar, click devices, send to one note 2013, click print, wait for a little bit, a OneNote dialogue box will pop up asking where in the notebook you want the PDF, after you choose the PDF will be in Onenote. Now you can go to draw and choose to highlight, take notes on the margins (or anywhere on the PDF), and other things. You can also draw diagrams, insert diagrams, insert pictures, audio, and whatever else you want to do. It's amazing for school.