RE: Is editing a .pdf possible?

["Brierley, Sean" <Sean -at- Quodata -dot- Com>]

Well, let's say you forgot the password on the file . . ..

Is this a password or security issue? The answer to the Subject: is that you
need a full verison of Adobe Acrobat, latest release being version 5, to
edit PDFs. You can protect your PDFs from being edited by using a password.
Previous versions of Acrobat used 40-bit encryption. Version 5 uses 128-bit
encryption. I take that change to mean that cracks that worked on version 4
PDFs won't work on version 5 PDFs. I also take that to mean that a PDF
created with version 5 using 128-bit encryption will be unusable in any
version of Reader older than 5 (i.e. Acrobat Reader version 4).

Cheers,

Sean
sean -at- quodata -dot- com

> -----Original Message-----
> From:	bryan -dot- westbrook -at- amd -dot- com [SMTP:bryan -dot- westbrook -at- amd -dot- com]
> 
> Stepping back from the technical "how to" discussion (in which I know I
> have
> participated), there is a legal and ethical question that needs to be
> asked
> before trying to defeat the protection on a file. Why was the pdf
> protected
> in the first place?  Defeating the password could put someone on shaky
> legal
> and ethical ground.

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