def get_font(name = :Helvetica)
      initiate_library
      font = FONTS_LIBRARY[name]
      return nil unless font
      font = font.dup
      font[:referenced_object] = font[:referenced_object].dup if font[:referenced_object]
      font
    end
def get_font(name = :Helvetica)
      initiate_library
      font = FONTS_LIBRARY[name]
      return nil unless font
      font = font.dup
      font[:referenced_object] = font[:referenced_object].dup if font[:referenced_object]
      font
    end
gets a copy of the font object from the fonts library (this allows you to use the font as an object is a PDF file, without altering the original registered font).