As there exist large number of both printed and electronical documents of table form, it is very important to provide their handling system. The system should provide capability of generating, modifying or filling in to the form only with logical manipulation. In this paper, we propose a system which can extract the structure of the form, and modify it logically without considering layout information, and finally generate modified form layout. The system is based on our table form analysis method and table form representation language (TFML). Experimental results show that the system can generate practical layouts for the modified documents.