Abstract: A cyanide-free desensitizing or conversion solution for converting imaged electrophotographic masters to lithographic printing plates comprising:(a) from about 1.0 to about 3.0 percent of phytic acid;(b) from about 0.5 to about 2 percent of a water-soluble anionic polymer;(c) from about 1.0 to about 3.0 percent of a water-soluble dibasic acid; and(d) an aqueous carrier; all percentages being based upon the total weight of the solution, the pH of said solution ranging from about 3.5 to about 6.0.A method of using this solution to convert imaged masters is also disclosed.