In order to help you decide, we give the size of the PDF file alongside its description. If you are connected via a dial up connection or if your bandwidth is severely restricted you should consider the likely download time before attempting to retrieve such documents. Documents published in PDF format are typically much larger than simple text files.
The PDF file can be easily downloaded to your computer, enabling you to view it offline at your convenience. Portable Document Format (PDF) provides a richer environment than other text formats and also allows materials to be printed exactly as the author(s) intended, including much of the supplementary information such as drawings, 3D, maps, full-colour graphics, photos, tables, charts etc.
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