Xpdf is an open source Adobe Acrobat viewer for Portable Document format (PDF) files (because so much online information is sitting in PDF, a PDF viewer is almost like a second browser).

Xpdf是一个开放源码的Adobe Acrobat查看器，用来显示pd f (Portable Document Format)文件(因为有太多在线文档都是pdf格式的，因此pd f查看器几乎就成了第二浏览器了)。

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The program lets users export their presentations directly into Powerpoint, as well as Adobe 's (nasdaq: ADBE - news - people ) Acrobat PDF format.

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