Deryn;Activ EBook, in fact any eBook compiler, takes a collection of files and "wraps" them in a self contained "exe" shell. Not unlike a self extracting zip file.
In this instance, it's the PDF file that is placed inside the password protected Activ EBook "exe" container. Unfortunately, Activ EBook does not provide any security protection for the PDF file. That's where HYPrLock comes in.
The HYPrLock PDF Encryptor automatically encrypts and decrypts the PDF file using invisible user and owner passwords. PDF files have a poor security reputation because, to open them you have to give someone a password. - who can give it to someone else.
With HYPrLock that's never a problem because no one ever gets his hands on the password. They never even see the password. Once a PDF file has been encrypted by HYPrLock - it can only be decrypted by HYPrLock.
If the PDF file is inside of a password protected "exe" shell you might wonder why there is a security problem. It just happens that when an Activ EBook is opened, a number of files are placed in a Windows "temp" folder and thats what happens to PDF files. While the PDF file is sitting in the "temp" folder it is vunerable to outside access.
I hope this information helps...
