We need a 1-up, press-ready PDF file with crop marks and bleed. Please see the "Preparing PDF Files" section of this web page for information about creating press-ready PDFs.

Crop marks are printed or drawn lines indicating where the paper should be cut to produce the correct page size.
No. Any desktop publishing software can create crop marks automatically when you export your file into a PDF. In this case, you have to make sure that the trim size is the same as your document size. For example, if the final trimmed size of your business card is 3.5" x 2" then your document size must be the same.
No. All files are imposed automatically by our workflow. If you submit the imposed file yourself, chances are that we will have to break it apart and re-impose it.
If any element on your document layout makes contact with the document border you will have to use bleed. The trick is to place the element so that it goes over the border where the document will be cropped after printing.
The term bleed is used for all objects overlapping the border of your document.
No. Conversion from RGB to CMYK is done automatically on our workflow.
We recommend that all images be saved at 300 dpi.