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HTML, the code used to create Web pages, cannot maintain all of the original formatting and presentation of many documents. In such cases, OKDHS uses a different format called Portable Document Format (PDF). PDF documents maintain the look of the original document, and they can be viewed on any Macintosh, PC, or Unix computer. However, you must download and install the free Adobe Acrobat Reader program at

Please be sure to use the most current reader from Adobe to ensure compatibility for all PDF files on the OKDHS Web site.

Adobe provides online conversion tools for Adobe PDF documents that help visually disabled users whose screen reader software is not compatible with the Adobe Acrobat Reader 5.0. These online tools convert PDF documents into either HTML or ASCII text, which can then be read by a number of common screen reader programs.

* Adobe, Acrobat, and Adobe Type Manager are trademarks of Adobe Systems Incorporated and may be registered in certain jurisdictions.