An electronic pasting method for pasting electronic data in consideration of printed and written data, including updating pasted data when electronic data is updated after it is pasted. The electronic pasting method uses a detecting unit and a paste information updating unit. The detecting unit detects a paste stroke made over two print sheets filled to denote a user's pasting action with which part or whole of a printed matter of electronic document information is pasted on printed matter, then detects the pasting action from a set of paste strokes, thereby obtaining a paste-from document, a paste-to document, and a paste position according to the pasting action detected by the detecting unit. The paste information updating unit updates the e-document, the printed matter information, and the written information according to the above paste information.