Google Docs Viewer is ideal for collaborative document editing and is accessible from any device with internet, while Sumatra PDF excels as a lightweight and portable PDF viewer but lacks extensive editing features.
Sumatra PDF
Pros:
Lightweight and fast PDF viewer
Supports a wide range of PDF features
Portable and can be run from USB drives
Customizable interface with various viewing options
No installation required for portable version
Cons:
Limited editing capabilities for PDFs
Not suitable for complex document types
Does not support cloud-based collaboration
Google Docs Viewer
Pros:
Easy access from any device with internet
Supports a wide range of document formats
Real-time collaboration features
Automatic saving and version history
Integrated with Google Drive for easy file management
Cons:
Requires internet connection to use
Limited formatting options compared to desktop software
Dependent on Google account for full functionality