A photosensitive composition wherein the setting is prevented in the presence of air is subjected to partial setting by exposing the side in contact with air to light, then to complete setting by radiating light again without contacting the unset part with air. The composition is extended on a metal surface and subjected to setting, hence the smoothness is excellent. In addition, after the unset part was sticked by pressure to another unset composition or other film, it can simply be adhered by radiating light again. Further, when metal rolls are utilized as metal surfaces, the continuous manufacturing can be made easily.