How to Register Star (pdf) Watermark for Mac

Step 1: Find out register name and code

When you purchased Star (pdf) Watermark for Mac, you will receive an email including registration name and code in your payment email inbox or spam folder. Find out them first.
Did not receive register code? please send mail to, we will send it to you ASAP.

Step 2: Download the program you bought

Download correct edition of the program you bought, such as you bought Pro edition, please download Pro edition, not Ultimate edition. Or you will get error message like this:

Click here to download Star Watermark Pro Version.
Click here to download Star Watermark Ultimate Version.


Click here to download Star PDF Watermark Pro Version.

Click here to download Star PDF Watermark Ultimate Version.


Step 3: Install and Launch the program you downloaded

Launch the program and find "Register" menu item in upper left corner of the computer screen as below.

Star Watermark Main Menu


Step 4: Type your register name and code

Type your register name (your payment email address) and code, and click "Register" button to register the program.


star watermark register window


More: Trouble shooting

If you get error message like "Invalid user name or registration code...", please make sure again these info are correct:

1. You are using correct edition you bought, maybe you bought Pro version, but you are using Ultimate version.

2. Maybe you bought Star PDF Watermark (for pdf files), but you are using Star Watermark (for photos).

3. The registration name is your payment email address.

4. Typed less or more character in register name or code.


(To avoid register issue, the best approach is download and install from the download link in your payment email inbox you received.)


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