When the code errored out, the problem document should have been listed on the left side of the VBE. Furthermore, if you examine the folders being processed, there should be a PDF for the last document whose processing completed; the problem one will be the next document after that. Otherwise, change:
Code:
Set wdDoc = Documents.Open(FileName:=strFldr & "\" & strFile, AddToRecentFiles:=False, ReadOnly:=False, Visible:=False)
to:
Code:
Set wdDoc = Documents.Open(FileName:=strFldr & "\" & strFile, AddToRecentFiles:=False, ReadOnly:=False, Visible:=True)
and re-run the macro