In order to save you time and money send a 1 up PDF. Consider if your document needs bleeds.
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If you have text or images that are not meant to be trimmed off the edge of your final printed piece must be 1/8"-1/4" (.125"-.25") from the edge of your layout (also known as Safety). Items placed 1/8" (.125") or closer are in danger of being trimmed off or showing inconsistent margins or even white space.
For example: if the final size is 8.5" x 11" then make your document 8.75" x11.25". Draw guides on the layout that are .125" from the edge all the way around. Now create your design with the idea that the layout will be cut off where those guides are because that is precisely what is going to happen.
Also please google “what are bleeds in printing”