Managing it yourself
You can do that yourself for sure by managing the files on a publicly available online storage. We recommend Google Drive for its download speed for that. You will need to create a separate QR Code for each file and go through the hassle of changing it each time the file change.
A better solution
It would be better to have a single QR Code placed at your establishment without the need to change it every time your files change. As such, it would be great to have a single web page displaying the multiple menus/offers where users can choose what they are looking for. Here is where Coverbox comes into play.
Coverbox multiple menus
We designed the system to use a single QR Code with multiple menus. If you choose to upload a single menu, the page will directly open the file. If you choose to upload more than one menu, then your users will start seeing your web page after scanning the QR Code. This page will display your list of menu files in a well-designed manner. And Guess what? You can have your own restaurant identity.