The tracking adjustment means widening or narrowing of spaces between letters.
- In the Layers palette, select a text layer.
- Open the "Text" dialog.
- Define the spaces width the "Tracking" slider or type a value from "-1000" to "10000" in the proper field.
- To re-establish the default spacing, set the "Tracking" value to 100% or apply the "Reset to Default" command.
NB Altering this parameter for substantial text pieces may take some time. Please be patient.