Edit Answer for another minute Are you talking about printer trim marks? If so, I would look at editing the PDF in the original program that created the document and setting the borders wide and tall enough to allow for the marks. I would create a new folder to work in, as the later steps will create duplicate files and if you were say working on the desktop, your desktop would be covered with over files! One can also use preflight to edit the page boxes, so it may also be possible to setup a custom preflight droplet to batch apply the pagebox edit to multiple single files.

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Printer marks indicate the boundaries of document boxes supported by Adobe PDF, such as trim boxes and bleed boxes. You can add printer marks temporarily at print time using the Marks And Bleeds panel of the Advanced Print Setup dialog box, or you can embed printer marks in the file and optionally in a layer using the Add Printer Marks dialog box.

For information about adding printer marks to just the printed output, see Include marks and bleeds. You can view these marks using the Layers tab in Acrobat. If the printer marks were exported as a layer, any printer marks you create using the Acrobat Add Printer Marks feature replace the InDesign printer marks. If the printer marks are not in a layer, Acrobat printer marks overlay InDesign printer marks and might not align.

Specify the pages to mark. Specify the marks and settings. You can adjust the margins of document boxes supported by Adobe PDF, including the media page size , trim, bleed, and art boxes. This capability is useful if the printer marks you add using the Add Printer Marks tool not the Marks And Bleeds panel of the Advanced Print Setup dialog box would be clipped because the crop box is too small to accommodate the marks.

Print service providers can also use this tool to expand the page size for imposition tasks. You can switch between boxes without losing the margins you set for each. As you adjust individual boxes, the preview in the Set Page Boxes dialog box is redrawn to reflect the new settings. Note: When the crop box is expanded, the media box adjusts accordingly.

Fix hairlines Very thin lines, called hairlines, are problematic in offset printing. If left as is in PDFs, they might not appear in the final printed piece. The Fix Hairlines tool can find most hairlines and replace them with a heavier-weight line. Enter a width for the hairline you want to find, and enter a replacement width. Adjust hairline widths using increment arrows. Shift-click arrows to change widths by whole integers. Select the unit of measurement from the Units menu.

Optional Select Include Type3 Fonts or Include Patterns to replace hairlines in Type 3 characters or patterns with the same replacement width as other hairlines. Font characters and patterns can be used in a variety of contexts in the same document for example, different magnification values , so changing the line width may produce unexpected results. Check the results if you select these options, and adjust your selections as necessary. Specify the pages to check.


Adding a Trimbox

It also contains a definition of the physical size of those pages. That page size definition is not as straightforward as you might think. There can in fact be up to 5 different definitions in a PDF that relate to the size of its pages. These are called the boundary boxes or page boxes: The MediaBox is used to specify the width and height of the page. For the average user, this probably equals the actual page size. For prepress use, this is not the case as we prefer our pages to be defined slightly oversized so that we can see the bleed Images or other elements touching an outer edge of a printed page need to extend beyond the edge of the paper to compensate for inaccuracies in trimming the page , the crop marks and useful information such as the file name or the date and time when the file was created. This means that PDF files used in graphic arts usually have a MediaBox which is larger then the trimmed page size.


The PDF page boxes: MediaBox, CropBox, BleedBox, TrimBox & ArtBox

On a PDF page that contains an advertisement, the ArtBox can be used to define the location of that ad. It shows that in Acrobat the MediaBox is highlighted with a magenta rectangle, the BleedBox with a cyan one while dark blue is used for the TrimBox. The bounding box is a rectangular frame that determines the dimensions of an object such as a graphic, font or pattern that is placed inside a PDF document. Now it seem ok to understand preepress guys. Sign up using Email and Password. This works for the Preflight function from Acrobat Professional version 6 onwards.


Printer marks and hairlines (Acrobat Pro)


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