Is there any software available which can put a lifetime on any file? I mean the file will automaticaly destroyed after the specified time period, even if it is copied and distributed ? This can greatly help regarding the copyrighted materials.
It could be made, maybe, but it would be relatively easy to circumvent.
Really, it would only be practical for executable program files.
...And even then, one might be able to easily block it by (for example) setting the file to be read-only.
I was specially thinking of e-books which are in PDF format. Is it, by some means possible to restrict access to the matter after a specified time/access ? Also one more thing I want to know, If I purchase a e-book, is it legal to distribute it among others ? In case of paper book, however, photocopy and distribution is prohibited in our country.
I can't think way to do it. whatever you do if someone make the file read-only then it won't be deleted.
I am having an idea, don't know if it is feasible. Since I am concerned about the text material, a software may be designed to hold the content in it's proprietary format which can only be accessed through that software. The content is distributed integrated with the software with a validity license( I know license can be cracked but taking the normal case ) similar to the antivirus softwares. Can it be done? It is there for the digital archives, but none of them has the content destruction feature.
Hmm interesting thought ...
Create a small app to view your file.
But it should open and display once it connected to internet and registered(First time).
Second time check whether to show or not.