Abstract: A combination leveling and edge trimming tool for use during the application of a wallpaper material to a wall surface. The tool includes a substantially thin and elongate planar shaped body having a first face and a second face as well as a first end and a second end. A bottom face of the body extends between the first and second faces and first and second ends and is suitable for receiving an elongate and substantially rigid blade edge suitable for use in leveling and adhering the wallpaper material to the wall surface. First and second level indicators are incorporated within the body and are operable about respective first and second rotating planes. A non-slip gripping material is secured to a selected first or second face and, upon orienting the tool at a specified angle relative to the wall surface, provides a secure engagement to permit trimming of excess wallpaper material.