Pre-populate form fields through form URL with encoded token

Yes, that's exactly what I mean. That seems like it might be the easiest
way of transmitting field pre-population information without it being easy
to change the data on the form.
If there is a security concern, a signed token can be generated using a
private key, that could ensure that the token had not been tampered with.
We do something similar with our product at the place where I work.
Thanks for doing this!

Thank you for your confirmation. A feature request ticket about pre-population based on a token has been attached to this thread and forwarded to our developers. We cannot provide any ETA for when it will be implemented, but we will let you know if we have any updates.

Thank you so much. Yet more proof that JotForm is brilliant.

...