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  1. #1
    New Lounger
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    My son is a university faculty member. He sent me the following question this morning:

    I want to make a document available to students to look at online, but I don't want them to be able to download it or pass it to their friends or copy and paste text from it. Any idea how to do that? I can create a "secured" pdf using OO that isn't supposed to permit copying and pasting of the text, but the file can still be downloaded and copied.
    I know there are ways to make it difficult for novice users, e.g., as graphic images, but is it possible to lock documents to everyone?
    Dr. M. L. Marshal
    M L Marshal Consulting

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  2. #2
    5 Star Lounger
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    Short answer is no. Anything that is displayed on a screen in an uncontrolled environment can be easily copied, saved, OCRed, printed and/or redistributed.

  3. #3
    2 Star Lounger
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    Quote Originally Posted by Byron Tarbox View Post
    Short answer is no. Anything that is displayed on a screen in an uncontrolled environment can be easily copied, saved, OCRed, printed and/or redistributed.
    Correct. Sadly, there is no way of 100% securing anything you see on your screen so that it doesn't "grow legs". People often simply make screenshots of a restricted file to bypass security.

  4. #4
    Super Moderator jscher2000's Avatar
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    Streaming media servers with players that write directly to the screen probably represent the pinnacle of copy protection. But they're not very practical for presenting text, and are still subject to low-quality copying with digital cameras and camcorders.

  5. #5
    5 Star Lounger
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    The document should have a very prominent copyright notice. That will not prevent people from making copies for their personal use but will offer some protection from people who want to plagiarize the work. Just because something is on the net does not mean that it cannot be copyrighted and receive the same legal protections as printed materials. And a locked PDF file is probably best distribution mechanism.

  6. #6
    Uranium Lounger
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    Check out this link for copy/content protection information. It should help you out. - http://www.hypergurl.com/norightclick.html

    And, here is another link you may find helpful http://myblog-log.blogspot.com/2007...-and-paste.html

    These will help with those folks who are somewhat computer challenged, but, as stated, you can't stop screen captures.
    <IMG SRC=http://www.wopr.com/w3tuserpics/DocWatson_sig.gif>

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