All product trials are fully functional for 30 days. Download and run the installer, launch InDesign or InCopy - on launch select Get Trial Key from the window that appears, fill in your name and e-mail address and click send. You will receive an e-mail with a Trial Key. Copy and paste this in the appropriate place to start your trial. For further information regarding installation, click the image below to watch a demonstration. For CS5 version and older, contact support.