Adobe Reader X is without a doubt the standard application needed for PDF viewing on Windows.
Adobe Reader has been in existence for over a decade and has gone  through various evolutions during this time. One result of this is that  it has been increasingly loaded with 
plug-ins and extensions which mean that it's consistently criticized as being bloated and slow.
This is true to a certain extent although Adobe Reader is a 
PDF reader that still has much to offer. With the latest version of Adobe Reader, 
Adobe  have addressed some of the speed issues and the memory footprint has  been improved consistently throughout the development of Adobe Reader X.
This version of Adobe Reader is not only slightly faster, but also  displays a clearer, simpler interface that makes it easier to use. Adobe  Reader X still features the classic tools from previous versions (Zoom,  Text selection, Snapshots and Read out loud), but now it also includes  renewed features such as the ability to leave comments as sticky notes. A  new feature you’ll find in Adobe Reader X is the 
Share tool, with which you can easily share the document by email or via the Adobe SendNow service.
If you were worried about security issues in Adobe Reader, fear not:  Adobe Reader X is probably the safest version ever released, thanks to  the new 
Protected Mode than loads images, code and 3D objects in a special area in memory, isolated from the system.
Adobe Reader X is undoubtedly an important update in the  history of this popular PDF reader – an essential tool to open, read and  print PDF documents.
Download Adobe Reader X Offline Installer