[请求] PDF file reading

9988

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I have a CCNP ebook which is PDF file, it can be read in original CD, but after copying it to the PC, it has an authorization prolbem, who knows what kind of software can be used to solve it?

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大熊猫

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你把问题描述的太笼统了。而且,用中文说不行吗?
 

terrence

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是不是有签名保护,拷贝到硬盘是没有把签名档拷过去?
 

阿搜

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well, a good way to read it is to "copy" the whole CD.
And try to duplicate instead of copying to harddrive.
 
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