Using fractional character widths


    By default, all the type in a document is displayed using fractional character widths. This means that the spacing between characters varies, and will sometimes use only fractions of whole pixels. In most situations, fractional character widths provide the best spacing for type appearance and readability. However, for type in small sizes (less than 20 points) displayed online, fractional character widths can cause type to run together or have too much extra space, making it difficult to read.

    You can turn off fractional character widths to set type spacing for the entire document in whole-pixel increments and prevent small type from running together.

To turn fractional character widths on or off:

    Choose Fractional Width from the Character palette menu. A check mark indicates that the option is enabled.