Palo Alto, California-based Adobe Systems’ Postscript is already the accepted standard for page description languages, used for explaining to a laser printer how you want the pages from your desk-top publishing system to be displayed. But Adobe is not satisfied with its initial success, and now wants to extend the scope of the language so as to get it accepted as the standard for screen display languages. The company, which has formed a separate division to complete the work under its director of advanced development Bill Paxton, is already partway there because its Illustrator product already rights directly to the screen with no step effects.