Bleed, trim and safe zone: check files before print

Three lines decide whether a printed piece looks finished: the trim line where the sheet is cut, the bleed outside it, and the safe zone inside it. Most file problems that reach the press are one of these three.

The three lines

• Trim: the finished size. For a business card this might be 90 x 50 mm or 3.5 x 2 in.
• Bleed: background colour and images extend beyond the trim, usually 3 mm (about 0.125 in) on each side, so a small shift in cutting never leaves a white line.
• Safe zone: keep text and logos at least 3 to 5 mm inside the trim, so nothing important is cut off or sits too close to the edge.

Bleed by product

Flat items such as cards, flyers and labels need 3 mm on each side. Folded items need bleed on the outer edges only, and the fold should never carry fine text. Packaging and boxes follow the die line: the bleed sits outside the cut and the glue flap, as the die line shows. Large-format work often needs more, so check with whoever finishes it.

How to spot missing bleed

• Open the PDF and look at the page boxes: the bleed box should be larger than the trim box.
• A background colour that stops exactly at the page edge usually means no bleed.
• Crop marks drawn inside the artwork, rather than outside it, point to a file built at trim size.

Asking for a fixed file

Stretching or mirroring artwork to fake bleed can distort photos and move text. Send the customer a short, friendly note: the size you need, the bleed in millimetres, and a screenshot of the problem. Most designers fix it in minutes, and the customer sees that you check their work.

Build it into your intake

Make the three-line check part of how every file comes in, not something done when there is time. A short note in your quote or on your website, with the size and bleed you need, prevents most problems before the file arrives. Customers who get it right once usually get it right every time after.