how Security PDF protect the file


recently I purchase and standard document PDF file from a website, and it said this is single license and only can download on one computer and print once. it's not allow to move to the server, so now just wondering how this PDF work, after download on my local computer,
1.can I still be able to copy to other place?
2.if I print the sencond time ,can they detect it? did PDF have this auto send out alert function?
3.did PDF had protect function like that?
Simon ChenNetwork AdministratorAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.


The answer is that it depends how the security is applied. Standard PDF security on any Pdf does not provide a level of sophistication that sends alerts back to an author.

I also don't think you would be technically restricted to copy it to another location. It seems more a license agreement specific term than a technical feature. Depending on your local jurisdiction I am not sure whether such a term would be binding as you should have the right to backup your data which would in itself be a copy to a different location.

The only way this PDF could be restricted to print twice or open from a different location is if it has DRM (Digital Rights Management) enabled which will create a wrapper to detect if it is run from a different PC.

So if the file is DRM protected it will stop you from using the file from a different location, which makes sense as otherwise you could just copy it and distribute it whilst the author is selling it. If it is not protected by DRM you should clarify with the author that you do not intend to distribute it and ask what you are allowed to do under license.

Simon ChenNetwork AdministratorAuthor Commented:
Thanks Captain, is there any way I can find out if this PDF is DRM protected?

Normally security is defined in the Document Properties. If you open this in Adobe and go to File > Properties or Document Properties depending on the version you have, go to the Security tab and see what identifier has been used.

If it says No security it is not protected at all, if it has security applied it will specify which.

Just report back what you find


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.