A Windows Mobile Device does not usually have the complete set of fonts available on the desktop, and if a font is not found, it substitutes the default font for the device. This can result in differences in the way the form is displayed on the device and how it was designed. In addition, the mobile device generally allows the user to increase or decrease the font size as required, and this can also have an impact on the way the form is presented. If you want to use a specific font, then it needs to be installed on the device manually.