9 Square today announces DocAS 4.1 for iPad, an update to their feature-packed, best-selling Productivity app that offers powerful document creation, organization, export, and printing features in a sleek interface. With file management, document reader, advanced note-taker, handwriting capability, PDF annotation, audio note-taking, wireless printing, PDF export, and more, this update includes support for the New iPad's Retina display, expanded editing, and enhanced zoom/close-up handwriting.