Abstract: In a block data editing apparatus according to the invention, block data to be stored in a block data storage area is mangaged by a block management table for storing block management data which includes reference position data representing a position on a page where the block data is to be displayed, and pointer data which represents a storage position of the block data in the block data storage area. The block data editing apparatus has a further area for temporarily storing the block data designated to be pasted, and also the reference data and the pointer data which correspond to the designated block data. All the block data can be pasted by a single processing operation, and the apparatus can maintain a specific positional relationship between a block frame and the block data. When pasting is executed, the block management data in which the reference position data and the pointer data are updated, is written in the block management table.