#!/usr/bin/env ruby require "prawn" p Prawn::Document::SIZES で、 {"C9"=>[113.39, 161.57], "B8"=>[175.75, 249.45], "A10"=>[73.7, 104.88], "A7"=>[209.76, 297.64], "RA0"=>[2437.8, 3458.27], "B10"=>[87.87, 124.72], "B9"=>[124.72, 175.75], "A8…