The technology provides for updating printed content with personalized virtual data using a see-through, near-eye, mixed reality display device system. A printed content item, for example a book or magazine, is identified from image data captured by cameras on the display device, and user selection of a printed content selection within the printed content item is identified based on physical action user input, for example eye gaze or a gesture. Virtual data is selected from available virtual data for the printed content selection based on user profile data, and the display device system displays the selected virtual data in a position registered to the position of the printed content selection. In some examples, a task related to the printed content item is determined based on physical action user input, and personalized virtual data is displayed registered to the printed content item in accordance with the task.