Fuzzy QR code

label.rb

require 'rubygems' 
require 'rghost'
require 'rghost_barcode'  
RGhost::Config::GS[:path] = '/usr/local/bin/gs'
RGhost::Config::GS[:unit] = RGhost::Units::Inch

doc = RGhost::Document.new :paper => [3,2] # 3"x2" label

doc.barcode_code39( '1234567', :x => 0.45, :y => 0.125, :width => 1.75, :height => 0.35, :rotate => 90 )
doc.barcode_qrcode('http://usrlib.org/media/1234567', :x => 1, :y => 0.125, :eclevel => 'H', :width => 1.5, :height => 1.5 )

doc.render :pdf, :resolution => 100, :filename => 'label.pdf'