How can I determine if a created PDF file has been encrypted in a unix or linux box

I'm not sure if execution of the command file on my box will tell me if a given created PDF file is encrypted and with what level of encryption.  Is there a way to determine if the file is encrypted by using the Unix/Linux tools after the fact?

Thank you

Sam

It is assumed that you want to do this in UNIX command line / Shell / Terminal.  There is a way that you could do that and that is to 'rolling' and build the tool with the Adobe PDF Library SDK.  Datalogics, which is an Adobe partner has a port of UNIX for the Adobe PDF Library SDK which could be used to create a tool that does this for you, but there is a very big opposition involved in the price structure for the Adobe's PDF library.

http://www.Datalogics.com/products/PDF/PDFLibrary/

Tags: Acrobat

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