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Every time I open a pdf today I'm receiving the error message that "This preview didn't load because the document may be protected.  Please try to open or download the file to view." The files were fine last week.  Any suggestions?

Hi Beth, 


Welcome to Box Community and glad to assist! 


Your error with Box Preview could be because of the following: 


For reference, you can visit File preview fails or results in an error.


Thanks for posting!


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