What is the "processing" of drawings which goes on behind the scenes which results in portions missing or being blacked out? It doesn't seem to be identical to the "processing" which occurs when using EFSWeb, as the same drawings filed in both systems appear in the file wrapper differently. Whatever processing Patent Center uses seems to distort the drawings even worse than EFSWeb. Is there any process we can use pre-filing to avoid the drawings being changed? If we incorrectly indexed non-line drawings as black and white line drawings, are the "as filed" drawings retained anywhere in the PTO records?