Follow the steps below to turn your Evaluation version into a fully licensed copy of QuarkXPress. this feature was introduced from QuarkXPress 8.02 and above
On Macintosh:
1. Launch QuarkXPress.
2. Go to QuarkXPress > Edit License Code
3. Click Continue.
4. Type in your new Validation Code and click Continue.
On Windows:
1. Launch QuarkXPress.
2. Go to Help > Edit License Code
3. Click on Next.
4. Type in your new Validation Code and click Next.