Introduction to PDF security  PDF Decrypter Pro  The application
of security on documents has always been a delicate balancing
act between ease-of-use and adequate protection for the
document's contents. When the documents contain commercial
content, insufficient security can mean lost income; when the
protected content is sensitive confidential information, the
consequences can be far more dire. On the other hand, if product
documentation were to be password-protected, users may not be
able to access it. This illustrates the point that stronger
security doesn't necessarily mean that it's a better fit, so
it's important not to mistake capability for imperative with
regards to security.  There is a high level of granularity
available in Acrobat 7 Professional and its associated products.
For instance, it's possible to limit printing, the selection --
and hence, copying -- of text and image, prohibit changing the
document or merging with other documents. It's also possible to
prevent users from filling form fie