Abstract
Adobe Systems Incorporated of the major U.S. software development company created desktop-publishing technology. That is because PostScript technology evolved the edit work of printing / publication process that was performed by handmade business to digitization. Furthermore, Adobe produced PDF (Portable Document Format) which became de facto of a digital document worldwide with the Acrobat technology which can also be called application of PostScript. Adobe had great influence on publication in network environment, and the business document. In this paper, this is regarded as an innovation of digital communication technology, and it analyzes about the process of the innovation of Adobe.