Before we print your job, we will submit a proof--a print made from the artwork we will be using to produce a press plate or digital image. Your job is to inspect the proof and report the results to us--OK to proceed to press; make corrections as marked then OK to proceed to press; make corrections as marked and present another proof.
We will not proceed to press until you have signed off on the proof. By industry standards, when you sign off on a proof, you agree to pay for the job as long as it looks like the proof--even if you later discover an error, and regardless of who made the error. This makes proofing a serious task.