Recently I downloaded an environmental report by a city planning agency and was appalled to find that the table of contents alone was 20 megabytes. The entire report totaled 170 megabytes. The city’s web site didn’t even have the decency to warn users how big each file would be.
Anyone who has made PDFs should know that they are quite easy to shrink by reducing the resolution of photos and other graphics. Commercial sites tend to keep files as small as possible or to provide multiple resolutions so that they are accessible to as many potential customers as possible. For example, the trailers pages for web sites advertising most movies offer “small,” “medium,” and “large” formats.
