Installing Adobe Acrobat Reader is easy now that it is a part of the dries repository. See the Repositories & Updates page if you have not setup yum. To install, first check to make sure that you have the compat-libstdc++-33 library, along with openldap and openldap-devel:
~> rpm -q compat-libstdc++-33 openldap openldap-devel
If any of the packages have not been installed, install them. For example, if compat-libstdc++-33 is not installed: ~> sudo yum install compat-libstdc++-33
Hit Enter and press 'y' when asked if you wish to install the package. Once the library has been installed, install acrobat: ~> sudo yum install acrobat
Hit Enter and press 'y'
when asked if you with to install the package. Once finished,
close your web browser and restart it. The next time you open a pdf document, acrobat will automatically launch and display the contents of the file within your current tab — the plugin nppdf.so (which should be located in /usr/lib/mozilla/plugins) is automatically configured now (it did not used to be).