You can make simple modifications to Dropbox links to share files the way you want.
Force a file or folder to download
To force a browser to download a file or folder rather than display it, you can use
dl=1 as a query parameter in your URL. For example:
Note: The original shared link URL may contain query string parameters already (for example,
dl=0). App developers should be sure to properly parse the URL and add or modify parameters as needed.
Render a file in a browser
Some browsers aren't configured to correctly preview files. While certain file types can be downloaded instead of opened, others—like HTML—are not supported.
To bypass the preview page and allow your browser to directly render your files, use
raw=1 as a query parameter in your URL. Adding
raw=1 to a URL will cause an HTTP redirect. If you're an app developer using such a URL in your own code, please make sure your app can follow redirects.