To get the best quality you need to bring us the best quality original you can get you hands on. Digital files as opposed to printouts will give the highest quality since that is what we print from. The original books or journals are best in the case of printed material because we have a high resolution scanner. When you bring us copies of books and journals we will try to clean them up but there is always the loss of quality from making copies from second generation scans. We always do our best to produce a professional looking course pack if we are provided enough time to do a good job.