FRAMINGHAM, Mass.--(BUSINESS WIRE)--Worldwide page volume from digital hardcopy devices* decreased to 3.09 trillion in 2011 from 3.12 trillion in 2010, a 1.0% year-over-year decline, according to new research from International Data Corporation (IDC). Developing regions led the way with 7.5% page growth when compared to page volume in 2010. Latin America and Asia/Pacific (excluding Japan) were ...