Disable embedded PDF preview

I am running a node.js version of tiddlywiki.
In this wiki, I use it to manage various datasheet PDFs and other technical reports.
These PDFs are often 10’s of megabytes large.

I typically drag-and-drop them to upload the PDFs as their own tiddler.
When I link to them though, they open the embedded pdf preview.
This often crashes my TW.

Is there a way to disable the auto embedded preview?
I would like to present a link to download it instead.

Thanks, Eric