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ASPProtect 7.x Documentation
 CJWSoft Support Info : ASPProtect 7.x Documentation
Subject Info: Image Protection A d d  -  P o s tAdd P o s t
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cwilliams
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CJWSoft Web Software Developer

Joined: April/06/2004
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Added: March/02/2005 at 1:22pm | IP Logged Quote cwilliams

ASPProtect v7 comes with working example code of protecting an image from being downloaded and also protects the true file location of the image on your server..

This comes with the system as an example folder with some files in it.

(some of the initial purchaser's of the system might not have that directory.. if that is the case please ask)

Here is how it works...

Basically we protect the image in 2 ways.

  1. We use Javascript right click disabling code that works in both IE and Firefox.
  2. We stream the image via a special password protected ".asp" page and use an image tag to call it. This hides the true location of the file. You can therefore keep your images out of your web or keep them in a folder in your web that does not allow file browsing. Under this scenario even if someone looks at the img tag html source they can not tell where the file came from. Doing all of this allows you to offer certain images only to people that are logged in.

All in all this is should be very effective protection. Yes, there are still ways to get the images like doing screen captures, but this will ensure that people viewing images are logged in to your site. This will in most cases keep them from right clicking and saving the images. This will ensure that people can not tell other people the image's url location and it will ensure other sites can not leach your images and bandwidth.

For the image protection examples to work you may need to edit some values
in the stream_pic.asp file that are valid for your setup.

Look at the source. The values you can edit are commented.

Now, you also need to call a valid "image file name" from the call_pic.asp file which is an example of how you protect a page with javascript and call a streamed image using an image tag.

Lasty, here is a great article I found on image protection and some of the things you can do about it and some of things you cannot.

http://pubs.logicalexpressions.com/Pub0009/LPMArticle.asp?ID =41



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Best Regards, Christopher Williams www.CJWSoft.com
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