how to protect online pdf file from printing, copying ... etc

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Hi,

Am working in knowledge management solution using asp.net 4 c#
I want to preview pdf files just for reading, no print no copy no print screen no download and no browser cache download

is there any way to do this ?

Posted 3-Apr-12 3:01am

ASakr

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bbirajdar · Answer 1 · 2012-04-03T04:04:00

Solution 1

The only way is to not to make it online....

Because you cannot stop the user from hitting the 'Print Screen' key on the keyboard or from hitting the 'Print' menu in the browser , neither you can stop him from saving the PDF to his computer using the 'Save As' menu option and copying it.

Best way to achieve your requirement is to display the data as a slide show to the user; i.e. only one page at a time. Although its not a fool proof method, but you can imagine that not much people would be interested in copying and saving your content ( however good it may be) one slide at a time.

Posted 3-Apr-12 4:04am

bbirajdar

Updated 3-Apr-12 4:16am

v3

Comments

bbirajdar 4-Apr-12 2:23am

Well, if you are able achieve your goal by any other technique, then please don't forget to post the solution here. We all will be thankful to you.

Please post your comments in the comments section and not in the solution section. You can also use the 'Improve question'

bbirajdar 4-Apr-12 2:29am

Try this http://www.locklizard.com/pdf_security_features_summary.htm .. I hope you don't want a paid solution

ASakr 4-Apr-12 4:49am

i found a solution by 3rd party http://artistscope.com/copysafe_web_protection.asp , it introduce online browsing for pdf file without printing,print screen and copy, these are the feature am looking for but the pdf file can be easy found in the temporary internet file in the client computer, so this solution fail and am still searching for another one.

ASakr · Answer 2 · 2012-04-03T04:22:00

Solution 2

thanks Birajdar for your help

the pdf file content is very important so I can't depend on slide show technique .

Posted 3-Apr-12 4:22am

ASakr

Comments

bbirajdar 4-Apr-12 3:18am

Even if you are able to achieve this, how will you stop the user from taking pictures of his computer monitor displaying your pdf content with a digital camera ?

ASakr 4-Apr-12 5:03am

sorry for this ambiguous if you don't mind can i delete this Solution2 and continue our conversation on Solution1 ?

Atul Dhimaan · Answer 3 · 2012-04-15T18:46:00

Solution 3

Is there any solution to make PDF file password protected

VB

</big> . So if user download my PDF file, it ask for password first....


Is that possible.

Posted 15-Apr-12 18:46pm

Atul Dhimaan