SendKeys From Excel VBA to Acrobat

I have PDF file with interactive controls in it (textboxes and command buttons). I would like to fill in Acrobat textboxes with Data using Excel VBA. Is it possible?

I've tried using Sendkeys, but it didn't work. Here is my code:

Sub Test()

      Dim gApp As Acrobat.AcroApp
      Dim gPDDoc As Acrobat.AcroPDDoc



     Set gApp = CreateObject("AcroExch.app")
     Set gPDDoc = CreateObject("AcroExch.PDDoc")
     If gPDDoc.Open("C:\MyFile.pdf") Then
       
        gPDDoc.OpenAVDoc ("C:\MyFile.pdf")
       
        gApp.Show
       
        DoEvents
        Application.SendKeys "{TAB}", True
        DoEvents

End Sub