To ensure your background fits perfectly without stretching: Go to the tab. Select Slide Size > Custom Slide Size .
Place a very long image or text box that extends far below the slide frame. Use the Morph Transition on subsequent slides, moving the long object upward on each new slide to simulate a continuous scroll. 1024x768 scroll background for powerpoint">
If your goal is to make the content appear to scroll over the background, use one of these techniques: To ensure your background fits perfectly without stretching:
You can apply your scroll image so it stays fixed as a background: Right-click the slide margin and select . Choose Picture or texture fill . Under Picture source , click Insert to upload your scroll image. 1024x768 scroll background for powerpoint">