Batch Print Visual Force Pages to PDF

Our invoices are created as visual force pages that we print via a Skuid button.

A new requirement has come up to print all invoices for a client as individual pdf’s in a batch. We currently use conga to achieve this but want to move away from it. I have done some research and attempted a couple of times to build a blob controller but never was successful. 

Has anyone ever done anything like this within Skuid?

Here is some reference info: https://salesforce.stackexchange.com/questions/255399/batch-print-visual-force-in-a-pdf

We have used the webmerge app on the app exchange. You design the form, insert merge variables, then it pulls the data from salesforce from a apex that can be triggered from Skuid. Works great. They were just purchased by FormStack.