Embodiments of the present invention provide for the efficient application of a system font mapping to a design. Specific embodiments of the invention involve creating a design environment for a user that is configured to display a design. The design environment allows a user to apply a design font to text in the design. The user is also allowed to define a mapping from the design font to a target font. These embodiments also include generating a markup language representation of the design and applying the mapping to the design. The text is linked to the design font using an encoding prior to the generating step, and the text is linked to fonts in the markup language representation using a different encoding.