Find your register code in your payment email inbox.

If you have forgotten your payment email address, open the software and find your email address from the menu Star (PDF) Watermark->Registration menu item. Then go to the inbox and search for star watermark.

Copy configuration file to new computer. (optional)

Open Finder -> Documents and copy the Star (PDF) Watermark folder to the path of your new computer.

Re-register star (pdf) watermark on new computer.

Download the software you purchased from star-watermark.com on your new computer and re-register with your registration code.

Check if the copied watermark configuration file is normal.

Open the software and double-click on any watermark template to open the Edit Watermark dialog.