Technical guides for graphic designers, packaging creators, and art directors: master TAC limits, Fogra/ISO profiles, and preserving rich black in print.
Understand why Photoshop files exceed Total Area Coverage (TAC) limits, why standard curve adjustments destroy dark contrast, and how to fix ink limits non-destructively using GCR separation and 1-click Auto-Fix.
A complete technical breakdown of Fogra 51 (PSO Coated v3) versus Fogra 39 (ISO Coated v2). Learn about Optical Brightening Agents (OBA), M0 vs M1 measurement conditions, and strict 300% TAC enforcement.
Authoritative reference table of maximum ink density limits across coated gloss, matte, uncoated woodfree, newsprint, and folding carton substrates. Master dot gain physics and eliminate press set-off.
Our free browser-based preflight inspector scans your CMYK files in client memory with zero server uploads.