Everything that appears on the images you send us will appear on your prints. Digital Signatures are fine as long as they appear stylized and professionals. Copyright notices however are generally frowned upon because no one wants to see COPYRIGHT 2021 JOHN SMITH across a beautiful artwork they want to display on their wall. If you are using a Copyright on your image the copyright should be professionally displayed and not distract from the work.
Finally, all artwork and images displayed on our site are copyrighted already by you the Artist as agreed upon in our Artist Agreement.