PDF (Portable Document Format) documents have become a universal digital document format. There are several workflow pathways to creating a PDF documentand some work better than others. The secret to creating high-quality , useful PDF documents in any workflow requires paying attention to the content, quality, and characteristics of your document and its text and graphic components at each step along the way. The old adage garbage in, garbage out applies to PDFsimage quality can be preserved but not enhanced during the PDF creation process.