Cutting tolerance is not one-directional. A die can drift outward. Cutting more substrate than intended, leaving white slivers (bleed handles this). It can also drift inward. Cutting away part of the artwork. Either can happen on the same press run, sometimes on adjacent impressions.
If your logo sits 0.5mm from the trim edge and the die drifts inward 1mm, half your logo is gone. The whole run is scrap. Safety zone prevents this by giving every critical element a buffer: if a cut drifts inward by the tolerance amount, critical content is still fully intact.
| Work type | Safety zone (inches) | Safety zone (mm) |
|---|---|---|
| Pressure-sensitive labels | 0.0625" | 1.5mm |
| Digital labels (HP Indigo, Xeikon) | 0.0625" | 1.5mm |
| Flexible packaging (pouches, film) | 0.125" | 3mm |
| Folding cartons | 0.125" | 3mm |
| Business cards / postcards | 0.125" | 3mm |
| Flexo wide-web, heavy substrates | 0.25"+ | 6mm+ |
Note the symmetry with bleed. A 3mm bleed outside the trim is typically paired with a 3mm safety zone inside it. Together they absorb the full range of die drift.
The rule: anything that matters must fit inside the safety zone. That includes:
Background colors, abstract shapes, and decorative patterns can extend to the trim (and past it, into bleed), they don't carry information that breaks when clipped.
Illustrator. Create a new layer called "Safety Zone" (and lock it). Draw a non-printing rectangle inset from the trim by your target amount. 1.5mm for labels, 3mm for flexpack. Set the stroke to a registration color so it doesn't output. Keep every critical element inside this rectangle.
InDesign. Go to Layout → Margins and Columns and set the page margins to your safety zone value. InDesign then shows a visible guide around each page. Turn on "Guides in Back" so it doesn't interfere with design.
Across the board: keep the safety zone guide in the final PDF as a non-printing layer (or bake it into the template you hand to the printer). This lets prepress verify your intent at a glance.
Preflight flags artwork that crosses your profile's safety zone, so logos, barcodes, and legal text stay safely inside the trim on press.
Check a file →