Adobe Reader 8.1

Adobe Acrobat Reader is free, and freely distributable, software that lets you view and print Portable Document Format (PDF) files.
Acrobat Reader also lets you fill in and submit PDF forms online.
New Features:
Enjoy a new interface, new tools, and more options
View information more precisely and efficiently with the redesigned, easier to use Adobe Reader 8 interface. Choose the reading mode to fit more content on the screen or the two-up mode to view page spreads without excess space in the middle. Zoom in, pan over, or leverage the loupe feature in Reader 8 to take a closer look.
Launch an online, real-time meeting in seconds
Instantly collaborate with virtually anyone, anywhere, at any time. Use the Start Meeting button in Reader 8 to access Adobe Acrobat Connect software and deliver online training and support or communicate with remote audiences in real time. Accelerate approvals with new Reader 8 features that include shared document reviews, a streamlined review tracker, and a simple RSS reader.
Realize more secure document workflows
Better protect documents, forms, and drawings by leveraging Adobe LiveCycle Policy Server and the new Adobe Online Services Document Center. For the first time, use Reader 8 to digitally sign Adobe PDF documents, allowing recipients to more confidently view and verify the authenticity of PDF files.
Save valuable time working with Adobe PDF files
View, print, search, sign, and collaborate on PDF files. Leverage new timesaving markup and review tools in Reader 8, as well as customizable toolbars and combined search and find.