Commerce File Module: Free download of product file on zero price ?

I am minding if this might be done in Commerce file itself, on products with zero prize.

I opened a specific issue on the Commerce file module page: http://drupal.org/node/1417766

Posted: Jan 26, 2012


Hendrik Martens on June 8, 2013

I've done this for a client. I wrote a step by step tutorial with screenshots on getting this functionality in Drupal Commerce. To view the full tutorial, head on over to the page on my website
Basically this is what I did:
Go to Store > Configuration > Payment methods
Click on "edit" next to your payment rule, in my case it is "Paypal WPS"
Under "Conditions", add a condition called "Price comparison" . Under "Operator", select '>=' and under "Second Price" type in $0.1 . It didn't want to take $0 so I made it $0.1 because I know I'll never have something that cheap. Save this rule and now it should be active.