Limits on the Name You Choose
Beyond the purpose of the change, common sense applies to the new name itself. A name chosen to deceive — for example, one deliberately designed to imitate a well-known person or a trademark in order to mislead — carries the same problems as any deceptive change. Names that are obscene, or that falsely imply an official title or status you don't hold, are similarly best avoided, as authorities may object and the choice can create fresh problems rather than solve them.
For the ordinary applicant this is rarely a live issue — most people are adopting a perfectly normal name for a perfectly normal reason. But it's worth knowing that the freedom to choose a name is not entirely without edges, and that a name selected to mislead is treated no more kindly than a change made to mislead.