Should this be able to work with a thumbnail link to a pdf stored in dropbox?

Hi,

As the topic title says, Should this be able to work with a thumbnail link to a pdf stored in dropbox?

I have a thumbail link to a pdf – I added the forceDownload class to the link but clicking it takes it to the front page of the site, rather than starting a download.

Anything I can try to sort it out?

Test page is here: https://mkgfoods.co.uk/brochure2/

The bottom thumbnail link.

Thanks for your help.

https://www.ads-software.com/extend/plugins/force-image-download/