What does 'scaling' a clip do?

When scaling a clip, you are changing its size within the frame. This involves either enlarging or reducing the visual representation of the clip, enabling you to position it appropriately within your video project. Scaling can be important for achieving a desired composition or to fit elements within the overall visual layout of a scene. This action affects how the clip appears in relation to other elements and can be used creatively to create effects such as zooming in or out.

In contrast, adjusting a clip's brightness and contrast relates to color correction rather than size. Modifying audio levels pertains to sound adjustments, and reducing the file size deals with compression rather than visual scaling. Thus, scaling specifically targets the dimensions of the video clip, making it a crucial tool in video editing.