pdf-fill-out-checkboxes.rb

#!/usr/bin/env ruby
# gem install pdf_forms

if ARGV.size < 2
  puts "USAGE pdf-fill-out-checkboxes INPUT OUTPUT"
  exit
end

require 'pdf_forms'

# On Linux
pdftk = PdfForms.new('/usr/bin/pdftk')

INPUT = ARGV.first
OUTPUT = ARGV.last

fields = pdftk.get_fields INPUT

data = {}

checkboxes = fields.select { |f| f.type != "Text" }.each { |f| data[f.name] = "Off" }

pdftk.fill_form INPUT, OUTPUT, data

puts "The following fields have been filled out :"
puts checkboxes.map(&:name).join(', ')