Imgix parameter "auto=format" breaking PDF links

I am using DatoCMS and Gatsby, and I need to link to a PDF. The problem that I am running into is that imgix is automatically adding “?auto=format” to the end of my URL query, which just gives a preview of the PDF instead of the actual PDF.

How do I prevent this from happening?

Thank you @clay!

I think this is a duplicate of this:

Just to leave it as a reference