Provided are a method, system, and article of manufacture for comparing and merging multiple merge documents, wherein each merge document includes content element locations having user content or empty. A determination is made in the determined merge documents of content element locations in at least two of the merge documents having a same content and content element locations in at least two of the determined merge documents having different content. An aggregate document is generated including content element locations corresponding to the content element locations in the determined merge documents. A content graphical indicator is rendered with content element locations in the aggregate document for which at least two of the determined merge documents provide different content, and information is rendered in response to user selection for the content in the plurality of the merge documents provided for the selected content element location.