DPI must be a specific and significant multiple (such as a 16x factor) of the selected LPI to provide the necessary precision for correct Halftone dot formation and reproduction of the full tonal range. For instance, for 150 LPI, a minimum of 2400 DPI is required. A lower multiple causes the halftones to become stepped, reducing quality.

As the final execution point in the Resolution Chain, choosing the lowest standardized DPI that supports the required LPI is key to managing costs in Prepress. Using an excessively high DPI merely increases RIP processing time and data volume without delivering superior final visual quality.