The Text Pro plugin helps you to create all kinds of text effects.
Edit By BS Editor: The Text Pro plugin helps you to Create all kinds of text effects. With Text Pro, you can create:
Create text outlines and text shadows.
Create 3D effects and multiple outlines.
Rotate and flip, warp, stretch, and shear text.
Place text inside and around a Circle.
Insert a symbol or special character.
Create extra large font sizes.
Save and open a previously saved effect.

To Install:
Put the textPro.dll file in the Paint.NET Effects directory.
This is usually C:Program FilesPaint.NETEffects.
Text Pro is located in the Effects or Effects->Render submenu. you can free download Text Pro 1.1 now.