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Adobe Acrobat is a family of application software and Web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF). The family comprises Acrobat Reader (formerly Adobe Reader), Acrobat (formerly Acrobat Exchange) and Acrobat.com. The freeware Acrobat Reader, available for several desktop and mobile platforms, can view, print and annotate PDF files. The commercial proprietary Acrobat, available for Microsoft Windows and OS X only, can also create, edit, convert, digitally sign, encrypt, export and publish PDF files. Acrobat.com complements the family with a variety of enterprise content management and file hosting services. ==History== Since the early 1990s the Acrobat product has had several competitors, some of which used their own document formats, such as: * AnyView from Binar Graphics company * Common Ground from No Hands Software company * Envoy from WordPerfect Corporation * Folio from NextPage company * Replica from Netopia (formerly Farallon Computing) * WorldView from Interleaf company * DjVu from AT&T Laboratories Adobe also allows third parties to develop Acrobat plug-ins, which can add extra functions to the Acrobat program. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Adobe Acrobat」の詳細全文を読む スポンサード リンク
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