Add Printer Crop & Trim Marks - Free Online Browser Tool

Add professional offset crop marks, fold guides, and registration targets for print shops.

Printers need crop marks to know where the artwork ends, fold guides to know where to fold, and registration targets to check their press is aligned. This tool adds all three outside the trim area, where they will be cut away and so will not appear on the finished piece.

This add printer crop & trim marks utility runs completely inside your web browser. Your document is opened locally and processed on your own device using JavaScript and WebAssembly, so your file is never uploaded to any server. There is no signup, no watermark and no limit on how many documents you can handle.

  • 100% client-side - files never leave your device
  • Instant processing, no upload wait
  • Works on desktop, tablet and mobile
  • Free forever, no account required

Common next steps: Add 3mm / 5mm Bleed Margin, CMYK Printer Calibration Control Patches, Resample Images for Print, Business Card Layout.

How to Use the Add Printer Crop & Trim Marks Tool

Four steps, and the whole thing runs locally on your own device.

  1. Load the artwork PDF

    Drop in the finished artwork at its final print size.

  2. Set the trim size and margin

    Enter the finished size and how much space the marks need outside it. Marks placed inside the trim area get cut off.

  3. Add the marks

    Corner crop marks, fold guides and registration targets are drawn in the margin area.

  4. Download for the printer

    Save the marked-up file. Everything added sits outside the trim line and is removed by the guillotine.

Frequently Asked Questions

Will the marks appear on the printed piece?

No, provided they sit outside the trim line. That is the whole reason bleed and margin exist — marks go in the area the guillotine removes.

What are registration targets for?

They let the printer verify plate alignment. Each target has crosshairs that must line up exactly, showing any offset between the printing plates.

What are fold guides?

Dashed lines showing where the sheet should be folded. They tell the finisher exactly where to crease so the fold lands on the intended line.

Do I also need bleed?

For any design with colour or imagery reaching the edge, yes — add 3mm or 5mm bleed so slight cutting inaccuracies do not leave a white sliver.

Will adding marks change my page size?

Yes, the page expands to accommodate the mark area. Keep the trim size unchanged — that is what the printer cuts to.