PHP script convertion DOC to PDF

I need a script that reads a **.DOC file and convert it to .PDF** keeping exactly the format and structure. **This script must run on a Linux server with PHP support 5.2 or 5.3. the script must be integrated into a site done in PHP.** **livedocx is not a valid option because it's has a document limit by day** **i can't install openoffice into the server.** the script can be writed in other language and later be integrated with php remenber the enviroment for the final script is php 5.2 or 5.3 I need only the script and instructions for integration. final delivery should be a form that allows the upload of a [login to view URL] and displays the resulting pdf.