IANAL, but it seems to me that this is meaningless, vague, non-enforceable legal dribble, probably designed as some kind of catch-all for internal purposes (indeed, it even says it’s for “operating or improving the Services or Software”). Obviously Adobe would still be subject to copyright infringement laws if they were to ever actually use a client’s work for profit. This TOS does not exempt a corporation from an entire class of laws designed to protect copyright holders.