print-word-with-meaning.rb

# file type PDF
# word is in odd page and meaning is in even page

require 'rubygems'
require "pdf/reader"

reader = PDF::Reader.new("Vocabulary Flash Cards1.pdf")
word_count = reader.page_count / 2
random_word_index = rand(2..word_count) * 2 - 1
# 2.. is used because first 4 pages contains conver and table of contents
meaning_index = random_word_index + 1 

word = reader.pages[random_word_index]
meaning = reader.pages[meaning_index]

word_meaning = "#{word}\n #{meaning}" 

puts word_meaning