1. What is Bleed and Safe Zone in Print Design?

    If you've ever received a printed piece with a thin white edge along one side, or text that's been partially cut off, you've seen the result of artwork that wasn't set up with correct bleed and safe zone. These are two of the most fundamental concepts in print artwork preparation — and getting them right is the difference between a professional result and a disappointing one.

    In this guide, we explain exactly what bleed and safe zone mean, why they matter and how to set them up correctly in your artwork before sending to print.

    What is Bleed?

    Bleed is the extra area of your design that extends beyond the finished trim size of your printed piece. When a print job is cut to its final size, the cutting machine works to a tolerance — it cannot cut in exactly the same place every single time. This variation is typically very small (around 1–2mm), but it's enough to cause a noticeable problem if your design stops exactly at the trim line.

    If your background colour or an edge image stops exactly at the trim line and the cut falls even slightly outside that line, a thin sliver of white (or whatever colour the paper is) will appear along the edge of your finished print. This looks unprofessional and is entirely avoidable with correct bleed setup.

    The solution is to extend your background colours and any images or design elements that reach the edge of your design by 3mm beyond the trim line on all sides. This extended area is the bleed. When the piece is cut, it cuts through the bleed area — so even if the cut is 1–2mm off, the result is still a clean, edge-to-edge print with no white gaps.

    What is the Safe Zone?

    The safe zone — sometimes called the safety margin — is the area inside the trim line where all important content must sit. Just as the cutting machine can cut slightly outside the trim line (hence the need for bleed), it can also cut slightly inside the trim line. Any text, logos, faces or critical design elements placed too close to the edge risk being trimmed off or sitting uncomfortably close to the edge on the finished piece.

    The standard safe zone for most print products is 3mm inside the trim line on all sides. Keep all important content — particularly text and logos — at least 3mm away from the trim edge. For products with particularly fine cutting tolerances or where the stakes are high (exhibition graphics, packaging), a 5mm safe zone is a sensible precaution.

    Bleed vs Safe Zone: A Visual Summary

    • Trim line — the line along which the piece will be cut to its finished size
    • Bleed area — 3mm outside the trim line. Background colours and edge images must extend to here
    • Safe zone — 3mm inside the trim line. All important content must sit inside this boundary

    So for an A5 flyer (148×210mm finished size), your artwork document should be set up at 154×216mm (with 3mm bleed on all sides), and all text and logos should sit at least 3mm inside the 148×210mm trim line.

    What Needs Bleed?

    Not every design element needs bleed — only those that extend to the edge of the printed piece:

    • Full-bleed background colours — if your background is anything other than white, it needs to extend into the bleed area
    • Edge photographs and images — any image that extends to the trim edge must be extended into the bleed area
    • Coloured borders or frames — if a coloured border runs to the edge of the design, it needs bleed
    • Graphic elements touching the edge — any shape, pattern or decorative element that reaches the trim edge

    Elements that sit entirely within the safe zone — text blocks, logos, centrally placed images — do not require bleed consideration, as they don't reach the trim edge.

    What Doesn't Need Bleed?

    If your design has a white background with all content sitting well inside the trim line — for example, a simple text-only letterhead — you technically don't need bleed, as there's nothing to cut through. However, it's still good practice to set up your document with bleed dimensions and submit at the correct size.

    How to Set Up Bleed in Design Software

    Adobe InDesign

    1. Go to File ? Document Setup
    2. Under Bleed and Slug, set all four bleed values to 3mm
    3. When exporting to PDF, ensure "Use Document Bleed Settings" is checked in the Marks and Bleeds tab

    Adobe Illustrator

    1. Go to File ? Document Setup
    2. Set Bleed to 3mm on all sides
    3. When saving as PDF, check "Use Document Bleed Settings" in the export dialog

    Adobe Photoshop

    1. Set your canvas size 6mm larger than the finished size in both dimensions (3mm bleed each side)
    2. For an A5 flyer, set your canvas to 154×216mm at 300dpi
    3. Extend background layers to fill the entire canvas including the bleed area

    Canva and other online tools

    Most online design tools have limited bleed support. If you're using Canva for print, set your canvas 6mm larger than the finished size and extend background elements to fill the entire canvas. Check with your printer whether their templates include bleed guides.

    Common Bleed Mistakes to Avoid

    • Background colour stopping at the trim line — the most common bleed mistake. Always extend backgrounds 3mm beyond the trim
    • Images cropped to the trim line — extend edge images into the bleed area
    • Text too close to the edge — maintain the 3mm safe zone for all important content
    • Exporting without bleed — check your PDF export settings include the bleed area before submitting
    • Adding bleed by stretching artwork — never scale up your design to add bleed. Extend backgrounds and edge elements individually

    Bleed Requirements by Product

    The standard bleed and safe zone at Dipol Print is 3mm on all sides for the vast majority of products, including business cards, flyers, posters, booklets and banners. Some products have specific additional requirements — always check the artwork specifications on the relevant product page or download our free templates.

    Notable exceptions:

    • NCR books and pads — 20mm safe zone (larger than standard) due to binding
    • Printed cushions — 20mm bleed due to the wrap-around nature of the print
    • Canvas prints — 20mm bleed to wrap around the frame

    Download Free Templates

    The easiest way to get bleed and safe zone right is to use our free artwork templates, which are pre-set with the correct dimensions, bleed areas and safe zone guides for every product we print. Download templates directly from any product page on the Dipol Print website.

    Before submitting your artwork, always run through our proof checking guide to make sure your file is fully print-ready. And if you're unsure whether your artwork is set up correctly, get in touch with our team — we're happy to check your files before you place your order.

    Print with Confidence at Dipol Print

    Dipol Print produces print for businesses across Brighton & Hove and the wider UK. Collect from our print shop at 97 St James's Street, Brighton BN2 1TP or order online for UK-wide delivery.