Sams Teach Yourself HTML 4 in 24 Hours

By Dick Oliver

• Table of Contents
  • Copyright
  • About the Author
  • Acknowledgments
  • Tell Us What You Think!
  • Put Your HTML Page Online Today
  • I. Your First Web Page
  • Hour 1. Understanding HTML and XML
  • Hour 2. Create a Web Page Right Now
  • Hour 3. Linking to Other Web Pages
  • Hour 4. Publishing Your HTML Pages
  • II. Web Page Text
  • Hour 5. Text Alignment and Lists
  • Hour 6. Text Formatting and Font Control
  • Hour 7. Email Links and Links Within a Page
  • Hour 8. Creating HTML Forms
  • III. Web Page Graphics
  • Hour 9. Creating Your Own Web Page Graphics
    • Choosing Graphics Software
    • Graphics Basics
    • Preparing Photographic Images
    • Controlling JPEG Compression
    • Creating Banners and Buttons
    • Reducing the Number of Colors
    • Interlaced GIFs and Progressive JPEGs
    • Summary
    • Q&A
    • Workshop
  • Hour 10. Putting Graphics on a Web Page
  • Hour 11. Custom Backgrounds and Colors
  • Hour 12. Creating Animated Graphics
  • IV. Web Page Design
  • Hour 13. Page Design and Layout
  • Hour 14. Graphical Links and Imagemaps
  • Hour 15. Advanced Layout with Tables
  • Hour 16. Using Style Sheets
  • V. Dynamic Web Pages
  • Hour 17. Embedding Multimedia in Web Pages
  • Hour 18. Interactive Pages with Applets and ActiveX
  • Hour 19. Web Page Scripting for Non-Programmers
  • Hour 20. Setting Pages in Motion with Dynamic HTML
  • VI. Building a Web Site
  • Hour 21. Multipage Layout with Frames
  • Hour 22. Organizing and Managing a Web Site
  • Hour 23. Helping People Find Your Web Pages
  • Hour 24. Planning for the Future of HTML
  • VII. Appendixes
  • A. Readers' Most Frequently Asked Questions
  • B. HTML Learning Resources on the Internet
  • C. Complete HTML 4 Quick Reference
  • D. HTML Character Entities

Controlling JPEG Compression

Photographic images look best when saved in the JPEG file format. When you're finished adjusting the size and appearance of your photo, select File, Save As and choose the JPEG-JFIF Compliant file type with Standard Encoding, as shown in Figure 9.4.

Figure 9.4 Paint Shop Pro allows you to trade reduced file size for image quality when saving JPEG images.

Figure 9.4 also shows the dialog box you'll see when you click the Options button on the Save As dialog box. You can control the compression ratio for saving JPEG files by adjusting the Compression Factor setting between 1 percent (high quality, large file size) and 99 percent (low quality, small file size).

You may want to experiment a bit to see how various JPEG compression levels affect the quality of your images, but 25 percent compression is generally a good compromise between speed and quality for most photographic images.

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