Can I scan forms?

is there a widget or a way to scan or take picture of a document?

I do see there's a way to upload pictures but not to directly open a camera or scan a document. also Is jot form very secure for file transfer?

1.) To clarify, do you want to take pictures of a document and directly upload it to your form? If so, you can use the "Take Photo" widget or "File Upload" element. The form will prompt to allow the use of the camera on their device so that the form can use their cameras for picture taking.

2.) Yes, uploaded files are stored securely.  Keeping Your Uploads Secure

More about security you can find here - https://www.jotform.com/security/