If you are using the TurboTax desktop editions make sure the software has been updated to the latest release.
Click on Online at the top of the desktop program screen. Click on Check for Updates. If an update is installed, then you can go to Forms mode to see if the Form 1040-ES has been updated and the watermark removed.
You can also use the IRS website to make 2025 estimated tax payments, so you would not have to print and mail the Form 1040-ES. Go to this IRS payment website - https://www.irs.gov/payments