The eraser tool operates in much the same way as the brush tool but instead of changing the pixels in its stroke to a selected color it erases the pixels to transparent. To use the eraser you click and drag in the image to erase pixels within the eraser stroke. It is useful in compositing as it is used to clear or erase an area in a layer so that the contents of the layer below can be seen. The eraser tool is often used in combination with selection tools to restrict erasing to an area that defines an object in the layer or image. Upload an image from your computer or use a sample image to try the eraser tool.