Example code is for an older version of Toolkit, newer code is available.
# Copyright (c) 2021 ActivePDF, Inc.
# ActivePDF Toolkit 2017
# Example generated 01/24/21
require 'win32ole'
# Get current path
strPath = File.expand_path(File.dirname(__FILE__)) + "\\"
# Instantiate Object
oTK = WIN32OLE.new("APToolkit.Object")
# Specify the file to retrieve information about
oTK.GetPDFInfo(strPath + 'PDF.pdf')
# Retrieve various information about the PDF
strAuthor = oTK.Author
strTitle = oTK.Title
strSubject = oTK.Subject
strKeywords = oTK.Keywords
strProducer = oTK.Producer
strCreator = oTK.Creator
strCreateDate = oTK.CreateDate
strModDate = oTK.ModDate
# Close the PDF as it's no longer needed
oTK.CloseInputFile()
# Release Object
oTK = ''
# Process Complete
puts "Done!"