1. You can't.
2. Stop trying.
How to prevent screenshots in a web browser
21–30 of 131 posts
Re: How to prevent screenshots in a web browser
#22TL;DR You can't, stop trying. It's not worth the effort, it's tilting at windmills, and it pisses your users off. Just stop.
Re: How to prevent screenshots in a web browser
#23The answer is simple: you can't prevent (all) users from taking a screenshot in a web browser.
The solution is trivial: launch a VM, make a screenshot, hook APIs such as DirectX, etc.
Re: How to prevent screenshots in a web browser
#24So here's a startup idea that can help with that.
1) Build a library for hiding encrypted information inside images. It should be hard to detect (indistinguishable from random) and robust (e.g. survive printing and scanning).
2) Build a web crawler, coupled with a key store. Crawl the internet for images that contain our encrypted info.
3) The copyright owners will be our paying clients. They will display images only to logged in users, use our service to embed the user information in the image, and deposit the encryption key with us.
4) Whenever the crawler finds a stolen image, we notify the copyright owners and send them the details of the user who leaked it. We don't notify the user, of course.
Right?
Re: How to prevent screenshots in a web browser
#25That demo messed with my eyes. Even though it is interlacing faster than the eye can see for some reason it still felt weird to look at it. Overall, not worth the trouble or the decline in user experience.
It looks like a flickering interlaced TV screen to me. And, it basically is.
Re: How to prevent screenshots in a web browser
#26So here's a startup idea that can help with that. 1) Build a library for hiding encrypted information inside images. It should be hard to detect (indistinguishable from random) and robust (e.g. survive printing and scanning). 2) Build a web crawler, coupled with a key store. Crawl the internet for images that contain our encrypted info. 3) The copyright owners will be our paying clients. They will display images only…
>for hiding encrypted information inside images.
otherwise known as Steganography.
Re: How to prevent screenshots in a web browser
#27So here's a startup idea that can help with that. 1) Build a library for hiding encrypted information inside images. It should be hard to detect (indistinguishable from random) and robust (e.g. survive printing and scanning). 2) Build a web crawler, coupled with a key store. Crawl the internet for images that contain our encrypted info. 3) The copyright owners will be our paying clients. They will display images only…
I was under the assumption that image/theme services did that already, especially with website themes?
That may be an idea for a copyright troll, btw. Disseminate not-for-commercial-use for free, then charge dozen of thousands of dollars when infringement is found.
Re: How to prevent screenshots in a web browser
#28How to drive away customers: prioritize your unproven loss of income over making an attractive product. Accuse all your users of copyright infringement.
I really dislike this attitude on HN. You can have great products that make no money because cracks get popular (I have done testing with my own software and know for sure this is the case) and get higher results than the original product listing on google, Adblock, and many other methods thought to be "rights".
Even look at music piracy. Pirates did the big labels a favor: small, independent artists can't make a living anymore because everyone just expects it to now be free. They now are almost forced to go with a big label if they actually want to make any kind of living.
Re: How to prevent screenshots in a web browser
#29Cool, I love counterintuitive (and even counterproductive) solutions just for their own sake. I tried to do a similar thing with text a while ago: http://nbush.github.io/headache/
This is clever! I think it can be circumvented by removing all spans in a paragraph with more than 1 character.
Re: How to prevent screenshots in a web browser
#30I am having trouble with the last demo, I always get the full image when I print screen and then paste to paint. Anyone else?