How do I upload a document to JotForm?

I have the button to upload file to the Jotform, but I don't see the way to actually upload the file.  Thanks so much!

Do you mean you want to have an upload feature in your form? If so, you just need to add the File Upload Field in your form.

Once you have the File Upload field on your form, upon viewing the form, you can upload a file by clicking the Choose File button.

Then to download the file uploaded by your user, you can check it on the Form's Submission page.

If you are referring to a different concern, please provide us further information so we can further check your concern.

Regards.