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807

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5

I need to prevent a document from being saved / saved as (say from ms word). I've looked around and I havn't quite found a satifying answer. I've considered EFS... but I don't think it prevents the user from saving the document as... (though it prevents access to the original source file). Any ideas outthere?

A: 

Sounds like you need some DRM =)

j/k

Filip
+2  A: 

It usually isn't worth it to disable Save As, because you need access to the original in order to open it in the first place. There are always ways to copy a file.

I had the same issue come up when someone asked me to disable Save As for a PDF.

Mark Ransom
The problem is not the copy (EFS renders it moot)... its the ability to unecrypt... and then save off the document.
+2  A: 

There is no way take an arbitrary document and modify it in such a way that it cannot be saved. You could modify a program such as Word not to allow Save or Save As but that would still allow someone to open and save the document with a different program or on a different machine.

jdigital
Okay I'm really still struggling with this interface... see comments above (and "answer" below)
A: 

jdigital is actually closer to helping...

I'm not worried so much as opening / saving from a different machine per say. EFS would basically prevent them from opening (since they would not have the key to decrypt said file). However nothing stops them from opening the file from another program. I was more concerned with the ability to tell word (or that matter any application) not to allow save/save as functionality (true I could hack and disable the messages/menu items - but I was looking for a solution not a hack).

+2  A: 

Run it on completely locked-down system with read-only disk, no network and no removable drives. Access to the computer must be phisically restricted as well.

This should prevent Save As from working, but still won't prevent document from being copied (someone may take photo of the screen and OCR it).

porneL