Sidebar entitled "When You See the Big Red X"
This sidebar is provided for information in the event you corrupt a signature file. If you have been working along with the text, you may potentially corrupt a file as the examples require constructing several different user profiles. The solution, saving file versions with different names, was offered to circumvent this problem.
In ordinary circumstances, that is, where you are working with a group each having single identities, this problem isn't likely to occur, and you can safely route the document and have the same file saved by numerous people.