What are crop marks?
Crop marks (eng. crop marks) are thin lines placed in the corners of a printed document outside its final format. These marks precisely indicate where workers should cut the document after printing. Designers and printers use them primarily in professional printing, where they need to ensure accuracy and a consistent appearance of prints.
Why are they important?
Without them, the printer does not know exactly where to cut the document. This can lead to:
- inaccurate cuts,
- the appearance of white edges,
- or unwanted trimming of the design.
In combination with bleed they ensure that the final product will look clean, professional, and free of distracting errors..
Where are crop marks located?
They are placed outside the actual design space, specifically in the area of bleed (so-called. bleed). This way, they do not interfere with the content and remain outside the final dimensions of the print.
How to add them?
In professional graphic programs, adding crop marks is simple:
- Adobe InDesign: when exporting to PDF, select the option Crop Marks and set the bleed.
- Adobe Illustrator: use the Marks and Bleeds feature when saving the file.
- CorelDRAW: activate them in the Print settings or when exporting to PDF.
These programs allow for automatic generation of marks based on the selected dimensions and safe zones.