Super embarrassing! I didn't realize there were Canva watermarks on the pins. I have the pro account, so it doesn't show up when you download them to your computer. However, if you pull the pin from "my designs" using tailwind scheduler, the watermarks are still there. I am so silly! I didn't notice them. I would like to delete them and start over. Can I delete it without being penalized by Pinterest?
Yes, You can. There is some manual notice from the Company who have all right but if you don't receive such a mail then yes you can delete it immediately otherwise sooner or later you'll receive.