What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
Do you mean you want to allow your user to upload an image in your form? If so, you can add the File Upload field in your form.
And just set the File Type setting of the File Upload field to jpg, jpeg, png, gif (image file types) so the field will only accept image from your user.
If you are referring to a different concern, please provide us more information so we can further investigate the issue.