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Old 02-08-2012, 08:59 PM   #1
TES
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TES began at the beginning.
 
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Is it possible to further encrypt an EPUB document by password

Hi - I am wondering whether anyone might know whether it is possible to further encrypt EPUB documents by a numeric password code? That is, in addition to the encryption that is possible under Adobe, can you then add a second protective layer by specifying a unique 4 digit code that enables you to open up the document? Thanks for your help.
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