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How to Remove Security from PDF File
Part 1: Knowledge Base about the Security of PDF files
An obvious trend is that PDF, as a document format, have become more and more important day by day. In our daily work, we need to deal with PDF files frequently, like contracts, study materials and so on. In consideration of the security, some PDF files have been protected with PDF Password. And in these cases, even if we have the legal rights to use them, but failed, for the reason that we don’t know how to remove security from PDF files.
The secured PDF files always have been protected with two kinds of PDF password.
1. User Password. Also known as open password, because we would be asked to input password when clicking to open them.
2. Owner Password: we can read the contents of owner password protected PDF files, but could not copy or print it. Click "Document"-"Security"-"Show Security Properties" to check out the Document Restrictions Summary.
Part 2: How to Remove Security from PDF files
It’s would be not easy to remove the security by cracking PDF Password using brute force software. The special Doremisoft <a href="http://www.doremisoft.com/pdf/pdf-password-remover.html">PDF Password Remover</a> will be more suitable to make the work done. You can download the program for free trail.
Step 1: Launch the program and import encrypted files.
Click "Add Files" to load PDF files into the control panel, you can select many PDF files and import them at one time. For the user password protected PDF files, you need to input correct password when adding them, which make sure you have legal rights to unlock the password.
Here is the interface of the portable PDF Password Remover:
Step 2: Start Removal
Click "Convert" button to start PDF Password Removal. The whole process will just cost you seconds and the PDF security will be removed totally. And you can view, copy, print and edit PDF files as your wish.
PDF Password Remover with user-friendly interface makes it easy to use. It supports importing Adobe PDF 1.0-1.7 formats on Windows 2003/XP/Vista/7. You don’t need to install Adobe Reader or Acrobat to operate this program. Removing PDF password cannot be so easier, get one now!
If you are Mac user