The
illustration above shows three different elements that bleed off the
page (full page, rule, screened panel).
Bleed
allowance To allow for any deviations in cutting the paper to
the finished page size an element that bleeds off the page is typically
extended about 1/8" beyond the trim lines (corner or crop marks).
The inset image shows the bleed allowance for this two page spread.
Notice that the full page bleed extends beyond the corner marks at
the top, bottom, and left but not the center.
Problem
Elements that bleed off the page can sometimes add to the cost of
printing if the printer must use a larger size of paper to accommodate
the bleed allowance.
Solution
If possible, redesign to eliminate the bleed or reduce the page size
enough to fit the work on a smaller sheet of paper.