To make the background white in Adobe Premiere Pro, start by selecting the clip you want to edit in the timeline. Navigate to the "Effects" panel, search for "Ultra Key," and drag it onto your clip. In the "Effect Controls" panel, use the "Eyedropper" tool to select the existing background color. Adjust the "Matte Generation" settings as needed until the background appears white. You can also add a "Color Matte" layer with a white color placed beneath your clip for a solid white backdrop.
