Related subjects →  Change , Page , Boxes , Printing marks .

Use trim marks to set page box.

This Enfocus PitStop command uses the presence in the document of elements that may be crop or bleed marks to define the TrimBox and bleedbox.

The action has two parts:

Choosing which boxes to redefine

In the upper part there are two checkboxes to choose which page boxes will be defined with this action: TrimBox, BleedBox or both:

  • "TrimBox": In this case (the most common one), PitStop will use the trim marks in the document.
  • "BleedBox": Here, PitStop will use the bleed marks present in the file.

Warning: If there is only one set of marks, PitStop will always consider them as Trim marks. If there are two sets, PitStop will consider the innermost one as Trim marks and the outermost set as Bleed marks, because that is the logical thing to do.

Trim marks and bleed marks.

If the user has made a mistake and he has only put bleed marks, Pitstop will consider them Trim marks.

This is because most of the time a document has only trim marks or both sets of marks and it is an extremely unusual (and very difficult to detect) error for a document to have bleed marks only.

So the possibilities are:

  • If there are two sets of marks and we have ticked both boxes, PitStop will redefine both boxes.
  • If there are two sets of marks and only one of them has been chosen, PitStop will redefine the corresponding box.
  • If there is a set of marks and we have marked both boxes, PitStop will redefine both boxes with the same size (overlapping).
  • If there is a set of marks and we have checked only one box, PitStop will always redefine the TrimBox, even if we have asked for the BleedBox.

Defining which colours must have the marks

PitStop uses some position and size criteria to search for the marks, which we cannot modify. But we can choose the colours and inks that these marks might have. There are four criteria available (not mutually exclusive):

  • "400% CMYK": Candidate objects with a CMYK 100/100/100/100 composition will be considered as trim or bleed marks.
  • "Separation All (Registration)": Candidate objects with Registration colour (an special colour which means all ink separations defined in the document) will be considered as trim or bleed marks.
  • "100% Black": Candidate objects with 100% black ink shall be considered as trim or bleed marks.
    "A specific color": In this case, the marks must have a specific colour defined by the user using the colour model and ink selectors. We can also use the eyedropper to select one of the marks in the document and grab its "Fill" or "Stroke".

Note: Selecting the "Stroke" colour of an existing mark with the eyedropper is a very good option in case of doubt as to what colour the markings may have

The "Allowed marks position deviation" option allows us to define a small margin of error in the positioning of two marks that should be on the same horizontal or vertical line but have been placed botchly by hand.

Warning: This option does not work if a value of 18 points or more (about 6.35 mm) is requested.