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#1 2007-10-07 17:15:27

PamalaSmith
Member
Registered: 2007-10-07
Posts: 0

PDF Passwords and Security

I am actually doing a presentation for a Computer Security class and I need to know where passwords are saved  - particularly when one is trying to secure or sign a pdf document.  Are they saved locally?


My Product Information:
Reader Standard 8 / Windows

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#2 2007-10-08 12:35:01

Dimitri
Member

Registered: 2007-04-23
Posts: 250

Re: PDF Passwords and Security

Hi PamalaSmith,

Passwords applied with Acrobat to a PDF document are stored inside the PDF itself, not on the users's system locally.  Also, the password inside the PDF is stored as a hash, so it is not available for examination by someone viewing the document, even the author of the PDF.  Lots of people ask this because they forget the password they used for a particular PDF file and want to know how to find it- the simple answer is they can't and need to recreate the PDF from the source file ( the application the document was created in before converting to PDF).

Hope that helps,

Dimitri
WindJack Solutions
www.windjack.com

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