152 Chapter12 Tools of the Trade, and More There are a few more things that it is useful to know, as a graphic designer, when taking your job to a print shop. Film While most of us will end up using a CTP workflow, some print shops still create film from the digital file. Plates are then made from the film. In this case, the printer owns the film. Film is technically a tool of the trade, and actually belongs to the printer unless it is specified on the invoice. Then, and only then, is it yours. If you tell the printers when you call for an estimate that Despite what you might think, they are probably under no legal obligation to put the job back on the press. Of course, they will make an adjustment to your bill--but that is also likely to be a shock. It will not be 10% less than the estimate, even though they have come up 10% short on delivery. That is because the job is divided into two areas: Set-up and production. Set-up costs are things like film, plates, and setting up machinery such as folders. All this costs the same whether they run one copy or 100,000. Production costs are things like paper, press time, folding time, etc. Obviously, these will vary according to the quantity involved. In this case, you will not get any reduction on the set-up side of things, but you would get a