Adobe PDF
Adobe PDF:
- Proprietary format
- Provides control over document appearance (originally lacking in HTML)
- Lack of support for document structure
- Requires proprietary (though free) plugin (Acrobat)
- Proprietary plugin provides richer functionality (e.g. suppress printing)
- Development work on improved hyperlinking
- Becoming more open?
Conclusion
- Acceptable output format?
PDF is not a W3C activity