Adobe Reader 9    click here to download
(includes Acrobat.com on Adobe AIR) 

System requirements

Windows

• Intel® 1.3 GHz processor
• Microsoft® Windows® 2000 with Service Pack 4, Windows Server® 2003; Windows XP Professional, Home Edition, or Tablet PC Edition with Service Pack 2 or 3; Windows Vista® Home Basic, Home Premium, Business, Ultimate, or Enterprise with or without Service Pack 1
• 128MB of RAM (256MB recommended)
• 335MB of available hard disk space
• Microsoft Internet Explorer 6.0, 6.0 with Service Pack 1, or 7.0; Firefox 2.0 or 3.0

Macintosh

• PowerPC® G4, G5 or Intel processor
• Mac OS X v10.4.11–10.5.5
• 128MB of RAM (256MB recommended)
• 405MB of available hard-disk space
• Safari 2.0.4 or later