Ruby script to batch unlock pdfs in-place using qpdf (installed via homebrew)

unlock-pdf

#!/usr/bin/env ruby

files = ARGV.dup
password = files.shift

cmd = "qpdf"
options = "--decrypt --password=#{password} --replace-input"

files.each do |filename|
    print "Unlocking #{filename}..."
    %x(#{cmd} #{filename.inspect} #{options})
    puts "Done."
end

puts "All Done."