Cenveo, Inc. reported financial results for the three months ended April 1, 2017.    Net sales in the first quarter of 2017 were $374.5 million compared to $432.8 million in the same period last year, a 13.5% decline. The sales decline was primarily driven by: (i) lower sales in the envelope segment, primarily due to lower demand in office product and wholesale envelope product lines primarily due to marketplace trends, and lower direct mail demand from our customers; (ii) lower sales in the l...