ah ok thank you!  I've posted my question here: https://community.adobe.com/t5/document-services-apis-discussions/do-some-pdf-services-require-more-units-than-others/m-p/13084456#M4476

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'...