Can you not just rename the PUBLISHER NAME (not the layout name)?
Also, a slightly different issue... if you have the PDF open that you are trying to overwrite on your hard drive, it will give you an error...
Duane
Visual Frontiers
AC25 :|: AC26 :|: AC27
:|: Enscape3.4:|:TwinMotion
DellXPS 4.7ghz i7:|: 8gb GPU 1070ti / Alienware M18 Laptop