# File lib/pdf/writer.rb, line 1047 1047: def font_descender(size = nil) 1048: size = @font_size if size.nil? or size <= 0 1049: 1050: select_font("Helvetica") if @fonts.empty? 1051: hi = @fonts[@current_font].fontbbox[1].to_f 1052: (size * hi / 1000.0) 1053: end