Patent ID: 8365073

Claim:
A document display apparatus comprising: an image processor which displays a document having a plurality of pages; a memory unit which stores image data of the document; and a controller which controls the image processor to generate a first image data corresponding to at least one page estimated to be selected from among the plurality of pages of the document, store the generated first image data in the memory unit, and if a user requests a page transition and selects the estimated page of the document, controls the image processor to display the selected page of the document using the first image data stored in the memory unit, wherein the controller controls the image processor to sequentially generate the first image data in order of neighboring a currently displayed page, wherein the document comprises unit elements, wherein the controller controls the image processor to generate at least one of the first image data by stepwise excluding unit elements with a low priority, based on a page transition speed increase, and wherein the controller controls the image processor to prioritize the unit elements based on each element's effect on delivering meaning, or based on a user's selection.