DOCUMENT RETRIEVING APPARATUS, DOCUMENT RETRIEVING METHOD, PROGRAM, AND STORAGE MEDIUM

A document retrieving apparatus includes a document retrieving unit adapted to retrieve document data which include images that match an input retrieval condition, a retrieval result list display unit adapted to display, on a display unit, a list display of document data that match the retrieval condition based on the retrieval results of the document retrieving unit, and a thumbnail display unit adapted to display, in the list display by the retrieval result list display unit, a first thumbnail image associated with a page or an image element which matches the retrieval condition, and a second thumbnail image associated with another page or another image element which forms the document data that includes the page or the image element which match the retrieval condition.