Example code is for an older version of Toolkit, newer code is available. <?php
// Copyright (c) 2019 ActivePDF, Inc.
// ActivePDF Toolkit 2017
// Example generated 01/17/19
?>
<?php
// Get current path
$strPath = dirname(__FILE__) . "\\";
// Instantiate Object
$oTK = new COM("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 = null;
// Process Complete
echo "Done!";
?>