Force a browser to save file as after clicking link [duplicate]
Solution 1:
You could use the HTML5 download attribute like so:
<a href="path/to/file" download>Click here to download</a>
This opens a "save as" dialog regardless of file type without taking you away from the page.
Solution 2:
If you control the server, then you should set it up to send a Content-Disposition: attachment header for the files you wish to be downloaded (e.g. you can do this in an .htaccess file to make all .jpegs in a particular directory).