The document discusses the key aspects of power distribution network (PDN) design that a PCB designer can influence to ensure sufficient current and voltage are provided to all loads. The two main aspects are: 1) Ensuring sufficient copper between sources and loads by following IPC guidelines or using PDN analysis tools; 2) Optimizing capacitor placement, selection, and layer stackup placement according to guidelines. The document emphasizes that PDN design is less complicated for PCB designers than the overall system design if they focus on optimizing these two aspects within the board layout.