You need a vector file for wall or floor graphics because it allows for scalability without losing quality. Vector files use mathematical equations to define shapes and lines, rather than pixels, which means they can be scaled to any size without becoming blurry or pixelated. This is crucial for wall or floor graphics, as they often need to be resized to fit different dimensions without sacrificing sharpness or clarity. Additionally, vector files are easily editable, making it simple to adjust colors, shapes, and other elements to suit your specific design needs. By using a vector file for wall or floor graphics, you ensure that your designs maintain crispness and visual impact, whether they’re displayed on a small surface or a large area.