Our inkjet adhesive window film is a clear, polyester film that features a permanent adhesive. You may wonder how this media differs from our clear, glossy vinyl media? While both are clear and self-adhesive, the polyester film of the adhesive window transparency film is slightly thinner and more rigid than that of the glossy vinyl's. If you need your film to provide a less flexible feel, this is the media for you. The inkjet back-lit film is ideal for applications where a light source will be placed behind the film, allowing the light to show through the image and the inks. Papilio also provides this material without adhesive to make it more broadly compatible.