08/18/2026
Setting an incorrect Total Ink Limit (TIL) in your separation profiles is a recipe for pressroom trouble. It leads to slow drying times, tracking on the rollers, and messy ink set-off in the delivery pile.
For today’s , the Color Management Group explains the technical math behind calculating and enforcing Total Ink Limit (TIL) targets.
Total Ink Limit (also known as Total Area Coverage or TAC) represents the maximum combined percentage of CMYK inks allowed in the darkest areas of a file. Theoretically, solid CMYK layers would add up to 400%. However, no commercial press substrate can handle that much ink without causing serious production issues like smearing, paper distortion, or drying failures.
Determining the ideal TIL requires careful testing. Prepress teams print a specialized test target that steps up ink density in controlled increments (from 200% up to 400%). Technical experts evaluate these patches to find the point where adding more ink no longer increases darkness ($D_{max}$), or where the ink begins to bleed and smear.
For high-grade coated offset stock, the limit is typically set around 300% to 320%. For newsprint or uncoated sheets, it may drop down to 220% to 240% to prevent excessive absorption.
Enforcing these limits in your export profiles keeps your presses running fast and clean, without losing shadow detail.What is your standard TIL target for your primary web or sheetfed offset jobs? Let us know below.