You can download the latest version from Foxit Reader 6. The only difference between the two is that in Adobe Reader, you are only limited to opening the file and you cannot create a new PDF file while with Foxit Reader, you can both create and open PDF files. You may also try a different brand of PDF reader like the Foxit Reader.

To make sure you are using the latest version of Adobe Reader, download Adobe Reader XI. If this happens, then the files you downloaded from the website are already damaged and it is possible that you are not the only one who downloaded the corrupted file. If both files are really damaged, it will also not open on the other computer just like what happened on your computer. With version 6.1.4, the Foxit installer was bundled with potentially. After that on the same computer, open the PDF files using a PDF reader to see if they are really damaged or not. Download Foxit Reader Free Mac Os X Adobe Reader For Mac Os X Snow Leopard. To make sure that the files are not really corrupted, use a different computer and then download the PDF files again. Or maybe the PDF files have portions that can only be accessed using the latest version of Adobe Reader or any other PDF reader applications. It is also possible but unlikely to happen that the PDF files you were trying to download were created using a much newer version of a program that creates PDF files. It is possible that there is really no problem with your Adobe Reader if you can successfully open other PDF files that are already stored on your computer. Unable to open downloaded PDF files with Adobe Reader on Mountain Lion

Download foxit reader 6.1