North American printers are learning to improve their profitability even as top-line challenges in sales remain, accordign to the Printing Industries of America (PIA). Printers participating in this years’ Ratios Survey attained average profit rates of 2.7% on sales—up from 1.8% last year. This is the highest level in the past six years, but it is still not back to the pre-recession level of 3.1% in 2008. Profit leaders – printers in the top 25% of profitability – saw profits increase slightl...