PDFelement offers a free trial for users to test features. So users can see if it works as expected before deciding to purchase.
To remove a trial watermark, you will need to buy PDFelement subscriptions first. After that, you can go back to the software and refresh your login status and check if the pro version has been activated, and then save files again. Then no trial watermark will show up.
You may click here to check the price. Make sure you select the correct platforms (Windows/Mac).
For more help, feel free to contact customer service.