What is bleed?
In print terminology, bleed is print that passes the edge of where a sheet will be cut to it's finished size. The bleed area, in fact, will be cut off but allows print to run right up the edge of your finished piece. Bleed also allows for a small amount of movement and inconsistences that can occur during the print process
How should I send my artwork?
A hi-resolution PDF document is usually the best format to send print copy artwork.
The resolution must be a minimum of 300dpi and ideally, have 3mm of bleed around the edge of what you'd like to be printed