Star Watermark

Picture and PDF watermark tools on Windows PC and macOS

Register Star Watermark for Windows

How to Register Star Photo/PDF Watermark for Windows

Registering Star Photo or PDF Watermark for Windows unlocks the full features of the Pro or Ultimate edition. This guide walks you through the registration process using your purchased code, compatible with Windows 10+.

Steps to Register

Locate Your Registration Name and Code

Check your payment email inbox or spam folder for the email containing your registration name (your payment email) and code. Search for “Star Watermark” to find it.

If you didn’t receive the email, contact [email protected] for assistance.
Download the Correct Edition

Download the edition you purchased (Pro or Ultimate) from star-watermark.com. Using the wrong edition (e.g., Ultimate instead of Pro) will cause an “Invalid Registration” error.

If you see this error, verify you’ve downloaded the correct edition from your purchase email or the Free Download menu.
Install and Launch the Program

Install the downloaded software and launch it. Click the Register menu item in the top-right corner of the program window.
Enter Registration Details

In the registration window, enter your registration name (payment email) and code, then click Register to activate the software.

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Troubleshooting Tips

Invalid Code Error: Ensure you’re using the correct edition (Pro vs. Ultimate) and product (Photo vs. PDF Watermark).
Correct Email: The registration name must match your payment email address.
Typos: Double-check for extra spaces or missing characters in the code.
Best Practice: Use the download link from your purchase email to avoid edition mismatches.