Is there a way to reverse the author name and put a comma bewteen the two parts?

1. Import your PDF file into A-PDF Rename, Write below script in "Advanced" window:

Var
first,last:string;
p:integer;
Begin
author:=trim(author);
p:=length(author)-pos(' ',reversestring(author))+1;
first:=leftstr(author,p-1);
last:=rightstr(author,length(author)-p);
newauthor:=last+','+first;
End.

2. Run the script and you will get you wanted result, and change the author at last.

You can also rename your PDF files in this way, justfree download A-PDF Rename to have a try now!