A rear window decal has to communicate quickly, since most people will see it from another vehicle rather than standing directly in front of the truck. Keep the business name or logo prominent, use bold lettering for important contact information, and avoid trying to fit every service, slogan, or detail onto the glass. A phone number or short website can work well alongside the main branding, but the most important information should get the most visual space.
The design also has to work with the rest of the truck. Brake lights, tailgate badging, license plates, handles, and other details already compete for attention around the rear window. Look at the entire back of the vehicle when planning the graphic rather than treating the glass as an isolated rectangle. Larger type, simple shapes, and strong contrast can help the business name and contact information stand apart from everything surrounding it.
The shape of the glass matters too. Pickup trucks may have sliding center panes, defroster lines, rounded corners, thick trim, or separate glass sections that limit where important parts of the design can go. A layout that looks balanced on screen can end up with a phone number crossing a window seam, a logo sitting too close to the edge, or important information landing over a moving section of glass.
Before finalizing the artwork, measure the usable glass and identify those features. Keep business names, phone numbers, and other essential information away from seams, window edges, and sliding panes whenever possible. Planning around the actual window instead of designing for a generic rectangle helps the finished decal stay readable, balanced, and properly positioned once it's on the truck.