Hi, I've been enjoying the PDF extract API, but I've noticed that it's charging me more units than I've been calling the API. For instance, just now I made 3 extract api calls, but it cost 7 units. Why? Also, I'm currently doing the trial version that comes with 1000 free units. I certainly don't want it charging me more than what I'm using it for when it begins to actually cost me money....
PDF Extract API
PDF Services API