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#!/usr/bin/env ruby
=begin
= Info
Encrypts a PDF document.
= License
Copyright (C) 2016 Guillaume Delugré.
Origami is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Origami is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with Origami. If not, see <http://www.gnu.org/licenses/>.
=end
begin
require 'origami'
rescue LoadError
$: << File.join(__dir__, '../lib')
require 'origami'
end
include Origami
require 'optparse'
class OptParser
BANNER = <<USAGE
Usage: #{$0} [<PDF-file>] [-p <password>] [-c <cipher>] [-s <key-size>] [--hardened] [-o <output-file>]
Encrypts a PDF document. Supports RC4 40 to 128 bits, AES128, AES256.
Bug reports or feature requests at: http://github.com/gdelugre/origami
Options:
USAGE
def self.parser(options)
OptionParser.new do |opts|
opts.banner = BANNER
opts.on("-o", "--output FILE", "Output PDF file (stdout by default)") do |o|
options[:output] = o
end
opts.on("-p", "--password PASSWORD", "Password of the document") do |p|
options[:password] = p
end
opts.on("-c", "--cipher CIPHER", "Cipher used to encrypt the document (Default: AES)") do |c|
options[:cipher] = c
end
opts.on("-s", "--key-size KEYSIZE", "Key size in bits (Default: 256)") do |s|
options[:key_size] = s.to_i
end
opts.on("--hardened", "Use stronger key validation scheme (only AES-256)") do
options[:hardened] = true
end
opts.on_tail("-h", "--help", "Show this message") do
puts opts
exit
end
end
end
def self.parse(args)
options =
{
output: STDOUT,
password: '',
cipher: 'aes',
key_size: 256,
hardened: false
}
self.parser(options).parse!(args)
options
end
end
begin
@options = OptParser.parse(ARGV)
target = (ARGV.empty?) ? STDIN : ARGV.shift
params =
{
verbosity: Parser::VERBOSE_QUIET,
}
pdf = PDF.read(target, params)
pdf.encrypt(
user_passwd: @options[:password],
owner_passwd: @options[:password],
cipher: @options[:cipher],
key_size: @options[:key_size],
hardened: @options[:hardened]
)
pdf.save(@options[:output], noindent: true)
rescue
abort "#{$!.class}: #{$!.message}"
end
|
