blocks|key|2484466|text|不要把它放在网站上。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2484467|我是认真的。如果您将其发送给用户以将其显示给他们，那么他们就拥有该图像，因此可以保存该图像。依赖浏览器来执行某种策略将不可避免地以失败告终。如果可以查看，则可以复制。音乐行业一直在以艰难的方式吸取这一教训。|2484468|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Don't put it on the website.

Seriously. If you send it to the user to have it displayed to them, then they have the image, and can thus save the image. Relying on the browser to enforce some sort of policy will inevitably end in defeat. If you can view it, you can copy it. The music industry has been learning this lesson the hard way.

blocks|key|2484641|text|试图防止网站上的文件被复制就像试图防止水被弄湿一样。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2484642|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Trying to prevent a file on a web site from being copied is like trying to prevent water from being wet.

blocks|key|3892159|text|通过在表格中创建1像素图像矩阵来服务您的图像。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3892160|例如，对于1024x768图形：|3892161|<table>
++<tr>
++++<td><img+src="1_1.png"+height="1"+width="1"></td>
++++....
++++<td><img+src="1_1024.png"+height="1"+width="1"></td>
++</tr>
++....+repeat+x768
++<tr>
++++<td><img+src="1_768.png"+height="1"+width="1"></td>
++++....
++++</td><img+src="1024_768.png"+height="1"+width="1"></td>
++</tr>
+</table>|code-block|syntax|javascript|3892162|说真的，，谁会想要组装786432个像素呢？|3892163|玩得开心！:P|3892164|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Serve your images by creating a matrix of 1 pixel images in a table.

i.e. for a 1024x768 graphic:

<pre><code>&lt;table&gt;
 &lt;tr&gt;
 &lt;td&gt;&lt;img src="1_1.png" height="1" width="1"&gt;&lt;/td&gt;
 ....
 &lt;td&gt;&lt;img src="1_1024.png" height="1" width="1"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 .... repeat x768
 &lt;tr&gt;
 &lt;td&gt;&lt;img src="1_768.png" height="1" width="1"&gt;&lt;/td&gt;
 ....
 &lt;/td&gt;&lt;img src="1024_768.png" height="1" width="1"&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;/table&gt;
</code></pre>

Seriously, who is going to want to assemble 786432 pixels? 

Have fun! :P

blocks|key|2484540|text|不，这不可能。我见过这样的脚本/hack：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2484541|2484542|隐藏图像后面的其他图像和禁用右键单击，键盘上的一些键和剪贴板(非常烦人)|unordered-list-item|2484543|+(annoying)|2484544|Clean更多|2484545|2484546|但它们都不能阻止知识丰富的用户下载图片。|2484547|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|P|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|R|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|S|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

No, it's impossible. I have seen scripts/hacks that:

<ul>
<li>Hide images behind other images</li>
<li>Disable right clicks, and some keys on the keyboard (annoying)</li>
<li>Clean the clipboard (extremely annoying)</li>
<li>And more</li>
</ul>

But none of them will stop a reasonably knowledgeable user from downloading the images.

blocks|key|760708|text|不是的。在极端情况下，他们可以只用数码相机拍摄屏幕的照片，然后以这种方式拍摄图像。但是，即使按下PrnScrn通常也足以绕过最先进的技术。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|760709|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

No. In the extreme, they could just take a photo of the screen with a digital camera and take the image that way. But even pressing PrnScrn is usually enough to get around the most advanced techniques.

blocks|key|1503697|text|不是的。他们可以使用web+developer+toolbar及其image选项来view+all+image+paths，这样他们就可以下载它。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1503698|entityMap^0|A|L|X|5|15|K|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

No. They could use <code>web developer toolbar</code> and its <code>image</code> option to <code>view all image paths</code> thus they can download it..

blocks|key|2484609|text|真正的问题是:你为什么要这样做？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2484610|如果你允许用户查看图片，你不应该关心他们是否下载图片。也许解决方案是限制对该图像的访问，为其添加水印，或者阻止热链接，如果你对此感到担忧的话。|2484611|有一些方法可以让它变得更加困难，但正如许多人所指出的那样，没有真正的方法来防止它。|2484612|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

The real question is: Why would you want that?

If you're allowing the user to see the image, you shouldn't care if they download it. Maybe the solution is to restrict access to that image, watermark it, or prevent hotlinking if you're ever worried about that.

There are methods to make it more difficult, but as many have pointed, no real way to prevent it.

blocks|key|760789|text|制作一个丑陋的原色绿色和洋红闪烁的动画，没有人会想要复制它:-)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|760790|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Make the image a hideous primary green and magenta flashing animation, and nobody will want to copy it :-)

blocks|key|760808|text|你能以某种方式将“图像”转换成“电影”吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|760809|把它想象成一个棋盘--然后你随机地展示，比如说50%25的方块，每个显示的帧，并希望这足够快，让眼睛看到一张立体的图片……|760810|我不敢打赌，但有了足够的计算能力(在客户端)，这似乎是一个可靠的想法。|760811|即使你发布了你的算法，如果最终用户/潜在黑客不能得到随机数种子，你也应该没问题。|760812|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Can you somehow translate the "image" into a “movie”, whether an animated gif, flash or whatever?

Imagine it as divided into a checkerboard – and then you randomly display say 50% of the squares each displayed frame and hope that that is quick enough to fool the eye into seeing a solid picture ... 

I wouldn't bet on it, but with enough computational power (at the client side) it seems like a solid idea.

Even if you publish your algorithm you should be ok if the end-user/potentail-hacker can't get at the random number seed.

blocks|key|3892244|text|您可以使用http://www.swfir.com/或在SWf中显示图像，并通过XML调用swf中的图像。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3892245|entityMap|0|LINK|mutability|MUTABLE|url|http://www.swfir.com/^0|5|L|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can use <a href="http://www.swfir.com/" rel="nofollow noreferrer">http://www.swfir.com/</a> or show images in SWf and call images in swf through XML.

blocks|key|3892262|text|如果您不希望图像被复制，请不要显示图像。哈哈哈，..|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3892263|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Don't display your images if you don't want it to be copied. Hahaha,..

blocks|key|2484800|text|令我惊讶的是没有人建议添加水印...只有一些文本，上面有你的名字或URL|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2484801|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I am suprised that no suggested adding a watermark ... just some text with your name or URL on it

I'm using asp.net but open to using any language for doing this. I've seen some javascripts that does this but they seem pretty easy to get around. 

Is there a reliable way to keep users from downloading an image?

Is there a way to stop users from downloading an image from your website?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我使用的是asp.net，但也可以使用任何语言来完成此任务。我见过一些javascripts可以做到这一点，但它们似乎很容易解决。有没有可靠的方法来阻止用户下载图片？

问有没有办法阻止用户从你的网站下载图片？
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