> We also tried base 64 decode from the code below This is not optional, it is required.

I wrote here how you can base64-decode: https://clojurians.slack.com/archives/C7KDM0EKW/p1653083326368769

Not sure why the PDF is blank, but perhaps this is because some elements haven't loaded yet?

I'm going to sleep now, perhaps @lee has some ideas