When printing slides in PowerPoint, users have the option to “Scale to fit paper” in order to make the slides fit on standard paper. This option is per print setup, however, and the setting is not retained from one user to the next. Users often are not aware of this option, or forget to choose the option at print time, causing paper waste.
By default, PowerPoint slides are laid out with a size that optimizes display on the standard on-screen show ratio of 4:3. This ratio does not correspond exactly to standard paper sizes. To correct the layout to the standard 8.5 x 11 inch (or other) paper size, choose Design>Page Setup and either change the drop down option from On-screen Show (4:3) to Letter Paper (8.5×11) or manually set the Width and Height. Save, and the settings will be saved with the presentation, so the next user will have their print job default to standard paper size without having to adjust the settings or select “Scale to fit paper”.