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.
I'm not sure if I understand your query correctly. Are you referring to the Captcha field on your JotForm? If you want to generate unique IDs for each submission, you may consider adding Unique ID widget to your JotForm. Please refer to the guide below that can help you with setting up Unique ID widget on your form.
If you want to generate QR code on your JotForm, you may consider using Dynamic QR Code widget. Please take a look and let us know if you need any further assistance. We will be happy to assist.
You can send the Unique ID to the recipient by adding the Unique ID field in the auto-responder. Please see the screenshot below:
Hope this information helps!
The other question related to QR Code is moved to a separate thread and shall be addressed there shortly.