Knowledge of PDF Security
Nowadays, the security of information has become a significant problem. As one of the most common document formats for business and personal information sharing and storage, PDF is widely used in our daily life. More and more people like to encrypt PDF documents to protect their rights and privacy.
When the PDF documents contain commercial content, insufficient security can mean lost income. The information is valuable, perhaps a newsletter, or an analyst's report or a book. On the other hand, some people just want to keep the sensitive information in private. With the popularity of protected PDF documents, many people feel inconvenient to deal with them.
About PDF format:
PDF(Portable Document Format) is a file format that provides an electronic image of text or text and graphics that looks like a printed document and can be viewed, printed and electronically transmitted. Because of the reliability, stability, safety and modifiability, PDF is widely used in many fields such as: newspaper, advertising, e-books and etc.
How to see PDF permissions?
Mac users can easily see the permissions of PDF documents. When you open a PDF document with "Preview" program, click "Tools-->Show Inspector" from menu bar. The permissions will be shown to you in the pop up dialogue.
Generally speaking, there are two type of passwords commonly used by people to encrypt their important PDF documents: user password and owner password.
- A user password can refuse unauthorized accessing for PDF documents.
- A owner password can prevent the PDF documents from being modified, printed and copied without authorizing.
Why need remove PDF password?
When you surf Internet, you are exposure to multiple PDF documents. Sometimes, you may come across important PDF materials. But the copying, printed and editing options are disable. Or you just forget the owner password set by yourself. Obviously, in these situations we need to remove PDF password so that the document can be reuse without restrictions.
How to remove PDF password?
Removing PDF password is not an tough work any more if there is a profession password remover. PDF Password Remover for Mac is used to remove both user and owner password of protected PDF documents. The viewing, copying and editing restrictions will be removed in seconds on Mac.
The main features are:
- The password removing process is fast.
- Anyone can perform the program at ease.
- Support batch decrypting 200 PDF files at one time.
- Removing copying, editing and printing restrictions directly.