Freehand , a competitor to Adobe Illustrator and also made by Aldus, was sold to Altsys , the maker of Fontographer. By PageMaker had lost almost the entire professional market to the comparatively feature-rich QuarkXPress 3. Quark stated its intention to buy out Adobe  and to divest the combined company of PageMaker to avoid anti-trust issues.
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Adobe InDesign CC Tutorial for Beginners (1)