User Guide

FontLab 4
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The Parameters option lets you customize the autokerning algorithm. The
most used option is: How much white space do you want to leave
between glyphs? This controls how close the glyphs will be moved
together while computing kerning in the pair.
The Allow for positive kerning check box lets the autokerning algorithm
produce positive kerning in pairs. Positive kerning moves glyphs apart
from each other. Positive kerning is usually not recommended but there
may be occasional circumstances where it is needed.
If you want to save the existing kerning the combo box lets you control the
disposition of the existing (imported or manually created) kerning pairs.
You can replace existing pairs by automatically generating new ones, keep
them unchanged, or select the condition mode.
The Maximum number of generated pairs and Maximum absolute value
for generated kerning options control the possible number of
automatically created pairs and the maximum normal (negative or
positive) kerning value.