Fillable PDF Form: How can I use jotform in an offline mode?

Sometimes its not possible to get a good internet connection in some places that I am using JotForm.  Is jotform able to work in offline mode with fillable pdf?

Yes, you can do this with JotForm. You can convert your form to fillable PDF which allows offline filling of the PDF form.

You might want to check the following guides:

https://www.jotform.com/help/212-How-to-Create-a-PDF-Form

https://www.jotform.com/help/312-JotForm-Fillable-PDF-Creator-with-All-Points

https://www.jotform.com/blog/fillable-pdf-forms/

Once the user is connected to the internet the data user has filled submission will be updated on the server. 

The advantage with fillable PDF is you can fill data offline on the PDF document and submit however if you do not have an internet connection the data will not be sent to the server but once you are connected to a network then the data will be synced to your form submission data.

I hope it would be helpful for you, please let us know if you need further assistance.