1) Adobe pdf reader 10:-
- View, print, and search PDF files, including PDF Portfolios and PDF maps
- Author, store, and share documents, and share your screen, using Acrobat.com services
- Experience richer content and greater interactivity with native support for Adobe Flash technology
- Review documents using familiar commenting tools such as sticky notes, highlighting, lines, shapes, and stamps (When enabled by Acrobat Pro or Acrobat Pro Extended)
- Digitally sign PDF documents (When enabled by Acrobat Pro or Acrobat Pro Extended)

2) Foxit Reader:-
System Requirements
Operating Systems
- Microsoft Windows® XP Home, Professional, or Tablet PC Edition with Service Pack 2 or 3 (32-bit & 64-bit).
- Windows Vista® Home Basic, Home Premium, Business, Ultimate, or Enterprise with or without Service Pack 1 (32-bit & 64-bit).
- Windows 7 (32-bit & 64-bit).
Recommended Minimum Hardware for Better Performance
- 1.3 GHz or faster processor.
- 64 MB RAM (Recommended: 128 MB RAM or greater).
- 52 MB of available hard drive space.
- 800x600 screen resolution.
