Question has nothing to do with the product download tag.
How do I enable a member to download their order information without access to the CP? Just like the report generation in the Store CP, but I want to do this on a member level on a per order basis on the front-end of the website when the member is logged in.
The quickest and probably one of the easiest ways is to use an add-on like PDF Press to easily create a PDF for download using the Store Orders tag pair.
Or, if you just want to display the customers orders on the front end of the site (say in the customers account area) use Expresso-Stores {exp:store:orders} tags as Justin says, but use them on a template . Full documentation of the tag pair is here : https://www.exp-resso.com/docs/orders_tag.html
