Sonoma Valley Publishing, the commercial printing division owned by The Sonoma Index-Tribune, will be shutting down as of Oct. 31, said partner-owner Bill Lynch.

The twice weekly Index-Tribune, SONOMA Magazine and other publications will be printed off site while all other local operations will continue on as before.

“The printing industry has evolved in this digital age. Energy efficiency and other innovations in press technology have made our printing equipment obsolete and our production division unsustainable,” Lynch said. “We have chosen instead to concentrate our energies and resources on the continued evolution of our newspaper, magazine and other printed products, as well as our new digital-age web-based products.”