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.
The maximum file size allowed per upload session is 1GB.
You can read for more details on this user guide -Changing-the-Upload-Size-Limit
Can I pay with Paypall?
If you meant if you can use Paypal for subscription payment/upgrade -- Yes you can.
Paypal payment is available as payment option when paying subscription.
You can use this in the JotForm Pricing page when you choose paid plans.
Please inform us if you need further assistance.