I've got a list with a few thousands items. (It is a list of users that have completed some course.)

Sometimes a user would like to have a course diploma printed. How could we achieve this?

Alternative 1: The obvious solution would be to make the list be a document library, connect a template and then you could simply print the document directly. The disadvantage would be that you would have to store thousands of documents that never would be used. (The main purpose of the list is just to keep track of users completing a course)

Alternative 2: Store the users in a list as today, but then generate the document on the fly. In that case we have two more options, server side or client side (JavaScript).

I would like to take the clientside approach (https://github.com/edi9999/docxtemplater ) but this lacks support for IE.

Finally the question: Are there other options for generating this doc clientside? Is alternative 1 the best solution?