PDF (adobe.com)

Smooth edges of text

Smoothing out an edge of selected text is referred to as anti-aliasing. Anti-aliasing makes the edges of the text blend into the background so that the text is cleaner and more readable when it is large. Anti-aliasing applies to all characters in a given text block.

Original text; after smoothing

 In the Property inspector, select one of options from the Anti-Aliasing pop-up menu:
No Anti-Alias
Disables text smoothing

Crisp Anti-Alias
Creates a sharp transition between the edges of the text and the background

Strong Anti-Alias
Creates a very abrupt transition between the edges of the text and the background, preserving the shapes of the text characters and enhancing detailed areas of the characters

Smooth Anti-Alias
Creates a soft transition between the edges of the text and the background

Custom Anti-Alias
Provides the following expert-level controls over anti-aliasing:
Oversampling
Determines the amount of detail used for creating the transition between the text edges and the background

Sharpness
Determines the smoothness of the transition between the text edges and the background

Strength
Determines how much the text edges blend into the background

Note: Text in vector files (such as Adobe FreeHandĀ® files) is anti-aliased when opened in Fireworks.