The use of m-cresol for the Langmuir-Blodgett (LB) processing of polyaniline has been investigated, in particular for probing possible secondary doping processes in LB films. Langmuir monolayers and LB films of polyaniline and polyaniline-cadmium stearate composites have been obtained with the use of camphor sulfonic acid (CSA) both in the presence and absence of nt-cresol in the spreading solution. Expanded monolayers with higher molecular areas have been observed upon employing NI-cresol. The UV-vis spectral changes for the polyaniline LB films caused by m-cresol were shown to depend both on the preparation conditions and on the doping state of the monolayer. Such effects are likely to originate from changes in molecular conformation since m-cresol is not retained in the transferred film. In addition, processing with m-cresol brought no change to the electrical conductivity nor to the stacking order of cadmium stearate domains in the transferred LB films.