How do I upload files for printing using the Pharos Print app? Download the Pharos Print app (iOS and Android). On the configuration screen: Server: printing.trl.org Port: 443 Example of the configuration screen when you open the app for the first time. Log in with your library card number and PIN. Click UPLOAD and choose your document on your device. Adjust print settings at the lower right corner of the screen. Repeat for additional documents.