From a PRO account, you can use the Upload type of question. That question allows your repondents to upload one or several documents in the following formats: Word, Word 2007, JPEG, PNG, PDF.
Note : the size of a file cannot exceed 10Mo.
You have different options to download the files uploaded by your respondents :
1- From the results per respondents:
2- You can also export the documents from the PDF file of the report of your respondent:
Note : the files uploaded by your respondents cannot by downloaded from a CSV file.
Those files can be downloaded only by the user of the Eval&GO account when they are connected on the application.
3- Massively, by making a ZIP export of all the documents :