I am new to metafields and custom liquid and I am trying to create a link to a downloadable PDF that would go to each product.
The code I have right now is this:
Download Lab Results PDF
What I want the code to say is, IF there is a file in the metafield THEN show the text for the download link. ELSE show nothing. And when there is a file available, then if you click the link it will download the file.