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.
Unfortunately, it is not possible to disable the PDF upload feature to your integrated dropbox account. Once you integrate your form with your dropbox account and after your form is submitted, it will always upload the PDF version of your submission record along with the uploaded files.
Hope this answers your query.
Do get back to us if you have any questions.