Prawn-qr is a prawn extension for creating QR Codes inside of a prawn document thanks to rqrcode.

Add this line to your application's Gemfile:

gem 'prawn-qr'

And then execute:

$ bundle

require 'prawn-qr'

Prawn::Document.generate "test.pdf" do
 qrcode "http://codegram.com"
end

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request