This study demonstrates that chitosan derived from lobster (P. argus) chitin can be converted as a salt form with acetic, lactic, and citric acids by means of spray drying. The chitosan acetate, lactate, and citrate salts prepared by spray drying are amorphous solids. The particle shape of all chitosan acid salts studied here show tendency toward higher sphericity when spray-dried at higher temperatures. The chitosan acetate salts are characterized by higher moisture content compared with chitosan lactate and citrate salts. Chitosan citrate and acetate salts are more stable with higher exothermic temperature than chitosan lactate salt. Partial conversion of chitosan acetate structure to chitin is evident due to the effect of high temperature involved in the spray-drying process. Further studies on applicability of the present chitosan acid salts as excipients in pharmaceutical applications as well as on stability of the salts are suggested.