Image Protection! Plea for Advice

This is a discussion on Image Protection! Plea for Advice within the A Brief History of Cprogramming.com forums, part of the Community Boards category; print screen always works except one thing - animated pictures like the bannana. You don't get animation from a snapshot.... ...

  1. #31
    RoD
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    print screen always works except one thing - animated pictures like the bannana. You don't get animation from a snapshot....

    >>who cares anyway?

    not me : )

  2. #32
    S Sang-drax's Avatar
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    It is theoretically impossible to prevent people from saving a picture.
    To show a picture, it must be downloaded.
    The same goes for movies, music etc. The only possible way is to make the process a little bit harder, making the average person unable to perform the copy, thus reducing copying substantially.
    Last edited by Sang-drax : Tomorrow at 02:21 AM. Reason: Time travelling

  3. #33
    Hamster without a wheel iain's Avatar
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    not necessarily, php can create images on the fly, no image stored anywhere, so on this idea, write a script to read the bitmap stored in a passworded dir and then create it otf, htnl also allows to specify content=nocache in the header to stop files being cached
    Monday - what a way to spend a seventh of your life

  4. #34
    End Of Line Hammer's Avatar
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    Originally posted by iain
    not necessarily, php can create images on the fly, no image stored anywhere, so on this idea, write a script to read the bitmap stored in a passworded dir and then create it otf, htnl also allows to specify content=nocache in the header to stop files being cached
    If the picture is downloadable to a client PC, then it's savable. Can you prove me wrong?
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  5. #35
    S Sang-drax's Avatar
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    Originally posted by iain
    not necessarily, php can create images on the fly, no image stored anywhere, so on this idea, write a script to read the bitmap stored in a passworded dir and then create it otf, htnl also allows to specify content=nocache in the header to stop files being cached
    This doesn't stop me from right-clicking and select Save image...
    Neither does it stop me from taking a screenshot.
    Last edited by Sang-drax : Tomorrow at 02:21 AM. Reason: Time travelling

  6. #36
    BMJ
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    Here is what needs to be accomplished to make an image safe...

    1.) Prevent right-click "Save as..." (can be done)
    2.) Prevent image from being cached (can be done)
    3.) Prevent "File->Save As..." from saving the image (can be done)
    4.) Prevent IE6 image toolbar (when held over an image) from letting the user save the image (can be done)
    5.) Prevent people from directly accessing the image file (can be done, but hackers can always prove otherwise )
    6.) Prevent the user from taking a screenshot (cannot be done)
    7.) Prevent the user from taking a photograph of the screen (cannot be done)

    For the most part, if you do 1 through 5, your image will be more safe than most, but there is no 100%

  7. #37
    S Sang-drax's Avatar
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    And what happens if I disable javascript in my browser?

    (200th post )
    Last edited by Sang-drax : Tomorrow at 02:21 AM. Reason: Time travelling

  8. #38
    BMJ
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    You don't need javascript to do #1 - 5

  9. #39
    I lurk
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    Telnet to the page on port 80. Give the raw HTTP commands. Voila.

  10. #40
    Just one more wrong move. -KEN-'s Avatar
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    Originally posted by BMJ
    Here is what needs to be accomplished to make an image safe...

    1.) Prevent right-click "Save as..." (can be done)
    2.) Prevent image from being cached (can be done)
    3.) Prevent "File->Save As..." from saving the image (can be done)
    4.) Prevent IE6 image toolbar (when held over an image) from letting the user save the image (can be done)
    5.) Prevent people from directly accessing the image file (can be done, but hackers can always prove otherwise )
    6.) Prevent the user from taking a screenshot (cannot be done)
    7.) Prevent the user from taking a photograph of the screen (cannot be done)

    For the most part, if you do 1 through 5, your image will be more safe than most, but there is no 100%
    And absolutely all of that could be disabled by, on top of everything else, writing a plugin for your browser

  11. #41
    Mayor of Awesometown Govtcheez's Avatar
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    To get the picture the old school way, get out your camera and take a picture - there's nothing that'll save THAT! HAHAHAHA!

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