PDF files are scanned text files that must be read with the Acrobat reader. If you encounter a problem in reading PDF files in a webpage, you can do either of the following:
(1) You can save the PDF file onto your disk and then launch the Acrobat program in your PC and click File...Open to open the saved PDF file.
(2) Use the Acrobat Reader as a Helpder Application, i.e. Acrobat Reader will be opened in a separate window, not inside the browser. In Acrobat Reader 6.0 click Edit > Preferences > Internet, uncheck "Display PDF in browser".