Is there a way to hide the picture when the user press “print screen” button?
Question
My site (php, javascript) presenting a picture to the user. I want to protect the picture, and make it as hard as possible to get. The user can't download it, but he can use the "print screen" button.
Is there a way to hide the picture when the user press "print screen" button?
3 answers
solution1
4 ACCPTED 2015-08-01 20:35:35
No, because someone can simply view your website in a virtual machine and take a screenshot from the host operating system. Any answer that attempts to intercept keystrokes or clear the clipboard can easily be defeated by this approach and there's nothing you can do about it.
solution2
1 2015-08-01 07:51:36
Not supported
This is not supported in web based solutions.
If you're using IE, You can try to clear the clipboard print screen by
<body onload=setInterval("window.clipboardData.setData('text','')",2) oncontextmenu="return false" onselectstart="return false">
but his is a bad approach.
If this is critical for you, consider wrap your web app with a native one that has low level hooks to cover that for you
solution3
0 2015-08-06 23:05:25
The user can't download it
If the image is displaying on the screen then the browser has already downloaded it and the user can just browse to their cache and copy the file out. The best way to prevent image "piracy" is to use watermarking.
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