How to Generate Open-Type Classes
- 1). Download and open FontForge on your computer.
- 2). Click on the "Element" at the top of the page. Click "Font Info."
- 3). Select a font from the list in the drop-down menu. Check the "OpenType" box next to the fonts.
- 4). Select the "Mark Classes" command from the drop-down menu. Specify how you want your text displayed to solidify its properties in OpenType. Make your font italic, bold, underlined, a specific color, a specific size, or any other properties that you wish your text to hold between computers.
- 5). Click "File." Click "Save As" from the drop-down menu to save your document in the OpenType class.
Source...