The page number is a field which can be placed anywhere in the document. Normally we just put this in the footer or header but you can also put it in the body of the document. Remember to update the fields to keep them aligned with the pagination.

When using x of y I'm going to assume that y = total page count of document. The field codes for this would be
Page {Page} of {NumPages}

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Andrew Lockton
Chrysalis Design, Melbourne Australia