A client of mine has requested the original format of my documentation. I've never been asked this before and so I don't really have a policy yet in this regard.
I don't really want the client to be able to edit my stuff, since they'll be able to take my name and the copyright out, etc. but I have absolutely no idea what the standard industry practice is.
Just to clarify: The intention of this question was just to find out if there are situations where handing over original versions of documentation to a client is a reasonable thing to do. Jmac has pointed out that I should be asking if it reasonable, rather than standard, which I think is correct.
I come from a background in the aerospace/defence industry where documentation (and everything!) is very closely regarded and would NEVER have handed over the original documentation to a client. I had absolutely no idea to what extent this applied outside of that particular industry.