Method to scan through PDF looking for keywords

add_keywords_to_profile.rb

def add_keywords_to_profile(user)
  io = open(user.resume_pdf.to_s)
  reader = PDF::Reader.new(io)
  reader.pages.each do |page|
    string = page.text
    KeywordHelper.keywords.each do |word|
      if string.downcase.include?(word.downcase)
        user.keywords.push(word)
        user.save
      end
    end
  end
end