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pdfmetadata
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pdfmetadata
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#!/usr/bin/env ruby
=begin
= Info
Prints out the metadata contained in a PDF document.
= License
Copyright (C) 2019 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 'rainbow'
require 'optparse'
require 'json'
class OptParser
BANNER = <<USAGE
Usage: #{$0} [<PDF-file>] [-i] [-x]
Prints out the metadata contained in a PDF document.
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("-i", "--info", "Extracts document info metadata") do
options[:doc_info] = true
end
opts.on("-x", "--xmp", "Extracts XMP document metadata stream") do
options[:doc_stream] = true
end
opts.on("-f", "--format [FORMAT]", %i{text json}, "Output format ('text', 'json')") do |format|
options[:output_format] = format
end
opts.on("-n", "--no-color", "Turn off colorized output.") do
options[:colors_enabled] = false
end
opts.on_tail("-h", "--help", "Show this message") do
puts opts
exit
end
end
end
def self.parse(args)
options = {
output_format: :text,
colors_enabled: true
}
self.parser(options).parse!(args)
options
end
end
def print_section(name, elements)
puts Rainbow("[*] #{name}:").magenta
elements.each_pair do |name, item|
print Rainbow(name.ljust(20, ' ')).green
puts ": #{item}"
end
end
begin
@options = OptParser.parse(ARGV)
unless @options[:doc_info] or @options[:doc_stream]
@options[:doc_info] = @options[:doc_stream] = true
end
Rainbow.enabled = @options[:colors_enabled]
target = (ARGV.empty?) ? STDIN : ARGV.shift
params =
{
verbosity: Parser::VERBOSE_QUIET,
lazy: true
}
pdf = PDF.read(target, params)
result = {}
if @options[:doc_info] and pdf.document_info?
result[:document_info] = pdf.document_info.map {|k,v|
key = k.value.to_s
obj = v.solve
str_value = obj.respond_to?(:to_utf8) ? obj.to_utf8 : obj.value.to_s
[ key, str_value ]
}.to_h
end
if @options[:doc_stream] and pdf.metadata?
result[:xmp_metadata] = pdf.metadata
end
if @options[:output_format] == :text
print_section("Document information dictionary", result[:document_info]) if result.key?(:document_info)
if result.key?(:xmp_metadata)
puts if result.key?(:document_info)
print_section("Metadata stream", result[:xmp_metadata])
end
elsif @options[:output_format] == :json
puts JSON.pretty_generate(result)
end
rescue
puts $!.backtrace.join $/
abort "#{$!.class}: #{$!.message}"
end