PURPOSE: To improve the efficiency of an inserting work of picture information by storing a designated inserting frame in a document file, projecting the stored inserting frame onto the editing screen of a picture information file, segmenting picture information in the projected inserting frame and inserting it into the document file.

CONSTITUTION: On a document editing screen of a first file mainly composed of document information, an inserting frame A is designated by operating a pointing device. Outline information of the paste-in frame A is stored in a frame information storage part. Subsequently, a second file mainly composed of picture information of an image and a graphic, etc., is displayed on a picture information editing screen. On the picture information editing screen, the contour of the inserting frame A is displayed by projection. A position of projection is designated arbitrarily by operating the pointing device. By deciding definitely the position of projection paste-in Am, picture information in the projection inserting frame Am is segmented as segmentation picture information from a second file. Subsequently, the segmentation picture information is inserted into the inserting frame A. In such a way, the inserting word can be executed efficiently.