The IPF tagging language provides the instructions for how online information is to be displayed. With these instructions, or tags, you can:

• Highlight text
  
• Set margins
  
• Add lists, notes, and notices
  
• Create tables
  
• Change the size and style (font), and the color of displayed information
  
• Control the formatting of lines of text
  
• Illustrate with examples, figures, and art
  
• Customize windows
  
• Define ways to connect information units
  
• Establish communication links to other applications.