Bleed

What is Bleed?

Bleed is the portion of artwork that extends beyond the final cut line (trim line) of a printed document.

Standard printing presses print on sheets larger than the final product size. These sheets are then cut down to size using industrial paper guillotines. Bleed ensures that the artwork goes all the way to the edge of the finished sheet.

The standard requirement is 3 mm (approximately 0.125 inches) of bleed on all sides.

The Print Risk: White Edges and Cutting Drift

Industrial paper cutting is highly precise, but a tiny amount of mechanical shift (typically 0.5 mm to 1.5 mm) is normal on the press.

• If there is no bleed: If the blade cuts even a fraction of a millimeter outside the trim line, a visible sliver of unprinted white paper will show on the edge of the product.
• Inconsistent borders: Text or graphics that are right on the edge look unprofessional if the cut shifts slightly.

How Filecheck Autofixes Missing Bleed

Many end-users do not know how to add bleed margins in their design apps. Filecheck solves this automatically:

1. Bleed Inspection: We compare the dimensions of the TrimBox (the cut line) against the BleedBox (the artwork extension).
2. Auto-Extend Bleed: If the bleed area is missing or too small, Filecheck’s remediation engine applies intelligent algorithms to expand it:
   • Mirroring: We mirror a thin strip of pixels along the boundary edges outward.
   • Stretching: We stretch the edge pixels to fill the 3 mm bleed box.
3. Visual Soft-Proof: The customer is immediately shown a side-by-side soft-proof to review the extended bleed area before checkout, ensuring their approval of the layout.