How to reduce total ink coverage
Bring TAC under the press limit so ink dries instead of smearing.
Find your press’s ink limit
Ask your printer for the total ink limit for the stock — coated sheetfed is often 300–320%, uncoated and web lower. That is your ceiling.
Convert with the right profile
Convert RGB artwork to CMYK using the printer’s ICC profile (or a standard like GRACoL/SWOP). A correct profile keeps TAC within the press limit automatically.
Fix rich blacks
Replace 100/100/100/100 "registration" black with a controlled rich black (e.g. 60/40/40/100) and use plain K for body text.
Watch photos and gradients
The darkest shadows in placed images are the usual TAC offenders — reconvert them through the destination profile rather than leaving them in a wide-gamut space.
Verify from the content stream
Preflight computes TAC from the actual PDF content stream — including spot-color scn operators most tools skip — and flags areas over the limit.
FAQ
What is a safe total ink coverage?
It depends on stock and press. 300% is a common ceiling for coated sheetfed; uncoated and newsprint are lower. Use your printer’s stated limit.
Why does high TAC cause reprints?
Too much ink can’t dry fast enough — it offsets onto the next sheet, mottles, and smears, which forces a rerun.