barby_white_lines.rb

require 'rubygems'
require 'barby'
require 'barby/outputter/prawn_outputter'
require 'pdf/writer'

if defined?(JRUBY_VERSION)
  require 'barby/barcode/pdf_417'
  pdf_417 = Barby::Pdf417.new('Trou de boulette')
  Prawn::Document.generate('prawn_pdf_417.pdf') do |pdf| # Unpleasant white lines
    pdf_417.annotate_pdf(pdf, {:x => 200, :y => 500, :xdim => 2, :ydim => 6})
  end
else
  require 'barby/outputter/png_outputter'
  qr_code = Barby::QrCode.new('Trou de boulette')
  pdf = PDF::Writer.new
  qr_code.annotate_pdf(pdf, {:x => 200, :y => 500, :xdim => 8, :ydim => 8})
  File.open("pdf_writer_qr_code.pdf", "wb") { |f| f.write pdf.render } # Unpleasant white lines

  File.open("qr_code.png", "wb") { |f| f.write qr_code.to_png }
end