Those objects don't randomly appear by themselves - someone must have put them there.

Without looking at the document itself I can only make wild guesses. Even looking at the file it would still only be a guess because I don't know the history of that content. Perhaps they were pasted in from another source (eg with text from a web page). Perhaps they were remnants of floating objects such as drop caps or page number entries which had been added at some stage by someone.

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Andrew Lockton
Chrysalis Design, Melbourne Australia