I’ve worked in the printing industry off and on for the last twenty-five years and like every industry or profession we have our own lingo which, I’ll admit, can be confusing to the uninitiated. One word I find myself using and explaining on an almost daily basis is “Bleed”. The term “bleed” refers to text or images on a printed page that run to the edge of the printed sheet. If you look at a printed piece and it has a white border around the edges it does not “bleed”. Unfortunately, many young designers today are designing for the web or electronic media and don’t understand how to properly setup their files to “bleed” for print media.
The image to the left shows the basic design parameters that need to be considered when designing a document to bleed. These same guidelines apply whether you’re designing a business card, flyer, postcard, brochure, poster, magazine or other document.
The image below shows a business card layout. Notice how the image extends past the trim line.

Extending the background image past the trim line ensures that, when the cards are trimmed, there is no white showing on the edge of the cards. No matter how accurate of a trimmer is used or how skilled the operator, if the artwork isn’t setup to bleed there’s always a chance of white edges being left on the document.
When it comes to setting up a document to bleed not all software programs are alike.
InDesign
If you are using InDesign the bleed area can be specified when creating a new document. Simply enter .125 in the Margins and Bleed fields of the New Document window. InDesign will create margin and bleed guides similar to the guides in the first diagram above. Just make sure to “use document bleed settings” under the Marks and Bleeds settings when exporting to a PDF.

PhotoShop
If you are using PhotoShop to design your document you’ll need to set your margins and bleeds manually. Just remember to set your document size 1/4″ larger on both dimensions when starting a new document. You’ll then need to set guidelines in the document indicating the trim line and safety zone so that you’ll know how to place you’re design elements on the page.
Providing your print provider with files properly setup to bleed will save you and your print provider time and ensure the final printed piece will turn out as expected.
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