JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Please always reply to the thread where one of our agents had replied to you. In this instance it would be this thread: www.jotform.com/answers/530942-Can-we-replace-the-jotform-logo-on-the-image-field-with-our-own-logo
This allows us to follow up on the issue and have everything in one location.
Now to remove that just add this CSS code:
background: none transparent;
You can see how to add the CSS code by following the steps here: Inject Custom CSS Codes