pptx ??? ??????? ???? ? ???? ?? ???? Microsoft Office ???? ??? ?? ???? ?????? ?????? Microsoft PowerPoint? ?????. *.pptx? PowerPoint 2007 ?? PowerPoint ??????? ?? ?????. PPTX? XML ??? ??? ???? ???, ???? ???, ??? ??, ?? ? ?????, ??? ??, ??? ?????.
PDF? Portable Document Format? ??? 1990?? ? Adobe Systems? ?? ?? ?????. ?? ???? ??? ??? ???? ?????, ???? ?? ?? ??? ???? ??? ????? ???? ????? ??? ?? ???? ??? ?? ?? ?????. ??? ???, ??? ??, ??, ??? ??, ??, ?? ? ??, ??? ??, ???, ?? ???, ?? ??? ???? ???.
? ?? ????? Office PowerPoint 1.0 / 4.0 / 95 / 97 / 2007 &# 39? ?? ? ? ????. s ppt / pptx / pot / potx / ppsx / potm / dpt ??? ????? pdf?.
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