Process for forming an image

A process for forming an image, which comprises imagewise exposing a photosensitive image-forming material composed of a non-transparent support or support colored with dyes or pigments, said support having formed thereon as the uppermost layer a layer of a photosensitive composition, said photosensitive composition layer being in intimate contact with an original image transparency during said imagewise exposing and said composition containing a diazonium compound or an aromatic azide compound and a binder which imparts heat-softenability to the photosensitive composition layer wherein said layer is a solid layer not tacky at temperature ranges between about 5.degree. C. to 40.degree. C. and then adhering the photosensitive composition layer closely to a development carrier sheet having thereon a layer of an adhesive composition comprising a polymeric material and a tackifier and peeling said image-forming material and said carrier sheet from each other at a temperature which is lower than the softening temperature of the photosensitive composition layer and lower than the softening temperature of the layer of adhesive on said carrier sheet to imagewise separate said photosensitive composition layer and to transfer and adhere the entire exposed area of the photosensitive layer to the carrier sheet and thereby form a relief image on the carrier sheet, and the non-transferred unexposed area of the photosensitive composition remains on the support also forming a relief image simultaneously with the relief image on the carrier sheet.