can you allow a client to upload multiple files to dropbox from jot form?

If you would like to go directly from DropBox, you can use our Kloudless File Uploader:

https://widgets.jotform.com/widget/kloudless_file_uploader

If the files can be downloaded to the device first, then uploaded from there, any file upload field or widget should work.

http://www.jotform.com/help/29-Upload-Field-Allowed-File-Types