11.2.1 for Windows

Foxit PDF Editor
Chapter 10: Security User Manual
317
Chapter 10 – Security
The security feature of PDF gives you an exceptional control over your PDF files. To
provide adequate protection for PDF’s contents, you can encrypt and secure PDF files
to prevent unauthorized access, restrict sensitive operations, etc.
Check PDF security
Some PDF files may contain restrictions preventing actions such as printing, editing,
copying, etc. To check if you have these permissions, please do the following:
 Choose File > Properties > Security, or Protect > Secure Document > Security
Properties.
Password Protection & Certificate Protection
In Foxit PDF Editor, you can add password protection, certificate protection, and
security restrictions to a PDF or PDF portfolio, limiting who can open the file, can copy,
edit or print the file, etc. However, the protection in a secured PDF portfolio does not
apply to the PDF files in it, so for the component PDFs in a PDF portfolio, if you need
to add or remove protection, open the component PDFs and then add/remove
protection.
Password Protection
You can add a password to a PDF to limit access and restrict certain features, such as
printing, copying and editing.
There are two kinds of passwords that could be applied to a PDF file: a Document
Open password and a Permissions password. When you set a Document Open
password, anyone who tries to open the PDF must type in the password that you
specified. When you set a Permissions password, anyone who wants to change the
restrictions must type the Permissions password. Please note that if a PDF is secured
with both types of passwords, it can be opened with either password, but only the
Permissions password allows you to change the restrictions.
Tips:
1. There’s no way out to recover password from the PDF if you forgot it. To keep a
backup copy of the PDF that isn’t password-protected is a good choice.