Documentation
Publicon
Reference
Preferences
Cell Options
Display Options
Magnification
• Magnification is an option for notebooks that determines the scaling factor by which the notebook's appearance is magnified in the screen display.
• Magnification can be set to any number. With the default setting Magnification 
1, the notebook is displayed in its normal size.
• The magnification can also be set by clicking on the bar at the bottom of the window and choosing a value from the pop-up menu that appears.
