I need to do a bulk upload of files, and have done this via the 'Associated Files' upload on a designs detail's screen as a workaround to doing all individually. I did this as we don't yet have Bulk file Import configured.
Problem is, Its turned all my PDF assets to regular file assets. Not desirable as we utilise the %asset_type_icon% keyword.
So my question is, is there a way to do a bulk morph on a bunch of files?
I'm guessing I should stop uploading this way and get Bulk file Import setup.
Correct, there is no way to bulk morph. So your best bet is to get the Bulk File Import Tool setup. 
Thanks for confirming that Nic! thought as much - Last minute Friday rush to complete a task 