Can VBA automate Adobe Acrobat online?

Using VBA, I created several years ago an MS Word tool that interacts with PDF forms.  Specifically, it launches Adobe Acrobat, fills in a bunch of fields on the PDF, then auto-names and resaves the PDF in a specified folder.  I use the GetObject(, "AcroExch.App") method to automate Acrobat from VBA.  The saving is accomplished with a pdDoc.Save(...) command.  This worked fine on my client's machine when they had a full standalone version of Acrobat installed on the same machine.  

But recently the client transitioned to Adobe Acrobat online. The filling in of fields still works, but the auto-save no longer works.  

Does anybody know of a way to accomplish this with Acrobat online?

Thanks!