automatic converter. I think it should support these environment modes: Standard : Content-Language=en, Font-Size=normal, dir=ltr The mode that is commonly used. Especially, Euro-American scripts ( Greek , Latin , Cyrillic , etc.) is suitable to it. Suitable examples: en: , Wv/ca , Wp/prg Charis SIL : Content-Language=en, Font-Size=normal, dir=ltr, Font-Family: "Charis