The King County Web site makes use of portal document format (PDF) files to accelerate the production of existing documents into formats accessible by Web browsers. Typically on the King County Web site you will find manuals, reports, maps, or other large or complexly formatted documents compressed into the .pdf format.

You can download free copies of PDF readers from a variety of sources. The most popular is Adobe Reader from Adobe Systems. (external link)

You can learn more about portal document format (including other available free PDF reader software) from this reference article on Wikipedia. (external link)

Troubleshooting
If a PDF file seems to be not working, try downloading it to your computer and opening it up locally. If you're still having trouble, you might try shutting off your computer and restarting -- often that cures the problem. And if you're still having troubles, e-mail the county's Web Team.