spdf文件扩展名，spdf文件怎么打开？

.spdf

文件类型：Sealed PDF

扩展名为.spdf的文件是一个编码文件。

文件说明：

A .PDF file that has been sealed, or locked, using the SealedMedia Sealer; can only be opened by users with sufficient rights; authorization rights are stored on a License Server, which also tracks usage of the document.

NOTE:

To view an SPDF file, first unseal it using Oracle SealedMedia Unsealer, then open it with Adobe Acrobat or Acrobat Reader..spdf                                                                      

打开.spdf文件

Mac OS

Oracle SealedMedia Unsealer　

Windows

Oracle SealedMedia Unsealer　

Linux

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来源：. spdf文件