Thought id pass this on
This from savemybutt newsletter:

Adobe release 23 patches for the Adobe Reader this week. This is getting kind of nuts! The Internet Mafia is doing a good job finding ways to use Adobe PDFs to infect your machine, which in turn is making Adobe put out lots of patches.

Make sure to update your Adobe Reader after you finish reading this newsletter. If you don't know how, the easiest thing to do is go to adobe.com and click on the Adobe Reader button. While you are there, update your Adobe Flash, too.

As an alternative, there is a package called Foxit Reader. It is super fast and super safe. You can find it at www.foxitsoftware.com.