: You can purchase a lifetime license or download a 30-day free trial from the DxO website . Activation Steps : Copy the key from your purchase/trial email. Launch the application after installation. Paste the key when the registration window appears.
: Click "Activate" while connected to the internet to authorize your license. DxO User Guides Common Activation Issues Setup and Installation – Nik Collection Guidelines Color Efex Pro 4 Activation Key
Searching for "cracked" keys or key generators online is highly discouraged. : You can purchase a lifetime license or
Enter your serial number exactly as provided. An internet connection is usually required for this one-time validation. Troubleshooting Activation Issues Paste the key when the registration window appears
: Transferring or "reselling" Nik licenses is prohibited by the DxO EULA , meaning "second-hand" keys found on auction sites are often invalid.
Some of the key features of Color Efex Pro 4 include: