Some documents on the Illinois EPA web site, particularly forms and reports, are made available as Adobe Acrobat PDF files. These files end with the extension ".pdf". If you have having problems viewing these files, this page might help.
Acrobat files end with the extension ".pdf" in the filename and are indicated with the Acrobat PDF logo following the link, like this.
You do not need the Acrobat software (which is a commercial product), but you do need the Acrobat Reader software (which is available for free download from Adobe's web site). In addition, some web browsers include a built-in Acrobat PDF file viewer, although it is unable to view some types of PDF files. (See below for details.)
It is likely that Acrobat Reader has already been installed on your computer. If not, you will need to install it:
Find the downloaded PDF file on your computer, then double-click it to view it. Acrobat will start and display the file.
This might be caused by:
You can often view these files successfully if you download them to your computer first. (See below for instructions.)
This generally indicates either that you have an old version of the Acrobat Reader or that your web browser is using a built-in PDF viewer that is unable to display some types of PDF files.
Computer monitors display files at about 95 DPI (dots per inch). Printers generally print files at 300 DPI, 600 DPI, or more. If a file was generated at 95 DPI, it will look good on your computer monitor, but can look a bit fuzzy when printed. Similarly, if a file was generated at 300 DPI or more, it will look good when printed, but can sometimes look odd when viewed on your computer monitor. So, if a PDF file looks odd on screen, try printing it.
Are you using an older version of the Acrobat Reader software? Most Acrobat files generated using a new version of the software can still be viewed using an older version. However, there are sometimes problems. If you are not using the latest version, visit Adobe's Acrobat Reader download page to download and install it.