Abstract: A system for displaying slides of a presentation includes an editor module configured to generate a slide for the presentation based at least on content defined by a user. The system further includes a display module configured to generate display data for the presentation. The display data represents the slide of the presentation. The system further includes a user interface module configured to receive a selection of a portion of the slide based at least on a detected movement of a user input device across the slide. The display module is configured to enlarge the selected portion of the slide on the display in response to at least the movement of the user input device across the slide.