Use trim marks to set page box

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What it does

Allows you to set the trim box and/or the bleed box based on the trim or bleed marks found in the PDF.
Note:
  • Crop marks with a dash pattern cannot be used to set the page box.
  • Crop marks generated with Illustrator, InDesign and QuarkXpress are supported.

How to proceed

  1. Indicate which page box you want to set: the trim box, the bleed box or both.
  2. Specify the color of the trim marks by choosing one or more of the following:
    • 400% CMYK
    • Separation All (registration)
    • 100% black
    • A specific color.
  3. If desired, specify how much the marks are allowed to deviate from the expected position:
    • The unit is the unit set in the PitStop Pro Preferences (Units & Guides category), for example: cm or pt
    • The maximum value is 2.7 pt; if you enter a higher value, it is automatically reset to 2.7 pt or an equivalent value (if you're using a different unit).

Example

In the image below, the red marks are detected as trim marks and used to set the trim box (blue box). The position of the vertical marks in the top and bottom left corner is not as expected (they are not exactly on one vertical line), but the deviation (= difference between the position of both marks) is less than the specified threshold.



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