03 Sizing the Registration Mark The registered service mark symbol (®) is attached to each FedEx signature. The symbol should never be smaller than its preferred size, which is 5 points in diameter. It is positioned on the baseline of the FedEx wordmark at a distance equal to its radius. t pt 5 .p 25 Baseline Go to > fedexbrand.com > FedEx Company > Basic Elements > Signature/Logos > Registration Mark