Stoichiometric and cohesive CdS films were obtained by a solution growth technique. The crystalline structure of the CdS film on glass substrate was wurtzite highly oriented, in (002) direction as revealed by X-ray and selected area electron diffractometries. Composition of the CdS films was examined in detail by electron probe micro-analysis and X-ray energy dispersion spectroscopy. Quantum size effects were confirmed from the blueshift in the optical band gap of the CdS film.