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# frozen_string_literal: true

# Some permissions may be set for the regular user with the following options:
# <code>:print_document</code>, <code>:modify_contents</code>,
# <code>:copy_contents</code>, <code>:modify_annotations</code>. All this
# options default to true, so if you'd like to revoke just set them to false.
#
# A user may bypass all permissions if he provides the owner password which
# may be set with the <code>:owner_password</code> option. This option may be
# set to <code>:random</code> so that users will never be able to bypass
# permissions.
#
# There are some caveats when encrypting your PDFs. Be sure to read the source
# documentation (you can find it here:
# https://github.com/prawnpdf/prawn/blob/master/lib/prawn/security.rb ) before
# using this for anything super serious.

require_relative '../example_helper'

# User cannot print the document.
Prawn::ManualBuilder::Example.generate('cannot_print.pdf') do
  text "If you used the user password you won't be able to print the doc."
  encrypt_document(
    user_password: 'foo',
    owner_password: 'bar',
    permissions: { print_document: false }
  )
end

# All permissions revoked and owner password set to random
Prawn::ManualBuilder::Example.generate('no_permissions.pdf') do
  text "You may only view this and won't be able to use the owner password."
  encrypt_document(
    user_password: 'foo',
    owner_password: :random,
    permissions: {
      print_document: false,
      modify_contents: false,
      copy_contents: false,
      modify_annotations: false
    }
  )
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version Path
prawn-2.4.0 manual/security/permissions.rb