You can enforce a watermark on the script in the app itself via the project’s Export and Security settings.
In the Export and Security settings, toggle on Enforce Watermark in editor.

Whichever watermark(s) you have added in the Enforced watermark box will appear on the app. In the image above, “Sample watermark” has been added. In the app it looks like this:
You can use macros to make the watermark, including:
- The name of the exporter
- The email address of the exporter
- The name of the recipient (for emailed scripts)
- The email address of the recipient
To use one of the macros, type it exactly as you see it listed in the “Available macros” list.
You can enter multiple macros.