Work out print bleed size instantly with clear inputs, formula shown and shareable results.
Bleed is added to every edge, so the document is the trim size plus twice the bleed in each direction, while the safe area is inset from the trim by the safe margin. Guillotines cut with a tolerance of a millimetre or two, so artwork without bleed shows white slivers and text too close to the trim gets clipped.
Document size
document dimension = trim dimension + 2 x bleed
Safe area
safe dimension = trim dimension - 2 x safe margin
document dimension = trim dimension + 2 x bleed. Bleed is added to every edge, so the document is the trim size plus twice the bleed in each direction, while the safe area is inset from the trim by the safe margin.
Guillotines cut with a tolerance of a millimetre or two, so artwork without bleed shows white slivers and text too close to the trim gets clipped.
Enter trim width, trim height, bleed on each edge, safe margin inside the trim. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.