What is meant by bleed?
Bleed is the area outside the trim area of a document in which graphical elements are printed. This area is then trimmed off, resulting in color going all the way to edge of the piece. If you didn’t bleed elements and instead placed them up to the boundaries of the trim area, irregularities encountered during cutting might produce a piece where a thin line of unprinted stock shows along one or more edges. And that could ruin the overall effectiveness of the card’s design. Standard bleed is 1/8 inch.