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how to prevent someone copy what he/she looked in the webpage?

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4 years 11 months ago #76189 by limedong
see the title,thanks

because of the copyright.

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4 years 11 months ago #76210 by DenisChenu

limedong wrote: see the title,thanks

because of the copyright.

Hello,

Not LimeSurvey specific.

And there are NO solution.

Denis

Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member, professional service on demand (or search sondages pro).

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4 years 11 months ago #76286 by Steve01
Hello,

if you have a question please put it into the post and tell us what is your problem or what you want to do.

Like Shnoulle said there is no perfect sollution to prevent people from "copying" something from your page/survey. You can just make if more difficult for them, e.g. you can use a background image instead of "normal" images, add a watermark to an image, write text into an image so people can't copy the text directly, do some funny things with Javascript, ... .

Regarding copyright issues you can e.g. add a copyright notice to your survey template to tell people what you want to tell them.

Mit freundlichen Grüßen/Best regards,

Stefan Gohlke
LimeSurvey Team

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4 years 11 months ago #76292 by limedong

Steve wrote: Hello,

if you have a question please put it into the post and tell us what is your problem or what you want to do.

Like Shnoulle said there is no perfect sollution to prevent people from "copying" something from your page/survey. You can just make if more difficult for them, e.g. you can use a background image instead of "normal" images, add a watermark to an image, write text into an image so people can't copy the text directly, do some funny things with Javascript, ... .

Regarding copyright issues you can e.g. add a copyright notice to your survey template to tell people what you want to tell them.


Thank you very much.
However, how to use a background image instead of "normal" images. I can not use Javascript, I have not learned it.

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4 years 11 months ago #76308 by Steve01
Hello,

you can use CSS/Style Sheets to add a background image to an element on your page. Let's have a look at the limespired template. There you have an image with two trees in the header. The "header" in the example is a <div> Element
<div id="header">
. In the template.css file you will find something like
div#header {
  background: url(header-bg.png) no-repeat;
  right-bottom
}
This adds a background image to the element and uses "no-repeat" to prevent the image form repeating itself.

I don't think it is very difficult to do add a background image, if you have further questions or problems it might also be a good idea to search the internet for more information.

Mit freundlichen Grüßen/Best regards,

Stefan Gohlke
LimeSurvey Team

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4 years 11 months ago #76323 by limedong

Steve wrote: Hello,

you can use CSS/Style Sheets to add a background image to an element on your page. Let's have a look at the limespired template. There you have an image with two trees in the header. The "header" in the example is a <div> Element

<div id="header">
. In the template.css file you will find something like
div#header {
  background: url(header-bg.png) no-repeat;
  right-bottom
}
This adds a background image to the element and uses "no-repeat" to prevent the image form repeating itself.

I don't think it is very difficult to do add a background image, if you have further questions or problems it might also be a good idea to search the internet for more information.


Thank you very much.
There are many pictures in one question, can I use different pictures as background images in one question? Furthermore, How to control the location of different images?

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4 years 11 months ago #76343 by tpartner
You can only use one background image per element and position it with the background-position propery - www.w3schools.com/cssref/css3_pr_background.asp

Cheers,
Tony Partner

Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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4 years 11 months ago #76350 by DenisChenu
Yep,

Maybe, but all image still dowloaded via the cache in the user computer.

(ANd it's very easy to access to background image too).

There are no real possibility to do that.

Denis

Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member, professional service on demand (or search sondages pro).

Please Log in to join the conversation.

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4 years 11 months ago #76351 by tpartner
I agree with Denis, this is also not very secure.

I was just pointing out how to position the images.

Cheers,
Tony Partner

Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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4 years 11 months ago #76417 by limedong
Thank you very much

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