: If you owned an older version (2.0 or 3.0), you may be eligible for discounted upgrade pricing to the "Complete Edition". Activating Your Software Once you have your key, follow these steps to activate:
: Requires a paid license. Once purchased, the software can be used indefinitely without a subscription. A 30-day free trial is available, which requires a temporary activation key sent to your email. Color Efex Pro 4 Activation Key