在php中从word文档创建pdf

我正在尝试将word（doc，docx）文档转换为pdf，但没有成功。。。。我用过

<?php 
    $oLoader = new COM("easyPDF.Loader.6"); 
    try
    {
       $oPrinter = $oLoader->LoadObject("easyPDF.Printer.6");
       $oPrintJob = $oPrinter->PrintJob;
       $oPrintJob->PrintOut("F:'wamp'www'index'q.docx", "F:'wamp'www'index'q.pdf");
       print "Success";
    }
    catch(com_exception $e)
    {
      print "error code".$e->getcode(). "'n";
      print $e->getMessage(); 
    }
?> 

这个代码，但它的返回错误像

Fatal error: Uncaught exception 'com_exception' with message 'Failed to create COM object `easyPDF.Loader.6' in F:'wamp'www'index'index.php on line 2
com_exception: Failed to create COM object `easyPDF.Loader.6': Invalid syntax in F:'wamp'www'index'index.php on line 2

请帮我处理这个