Foxit PDF Editor for Windows

User Guide

  • Introduction
  • Get Started
  • Read
  • Create
  • Edit
  • Organize
  • Comment
  • Share PDFs
  • Forms
  • Security
    • Check PDF security
    • Password Protection & Certificate Protection
      • Password Protection
        • About password protection
        • Add a password security
        • Modify password and security settings
        • Remove password and security settings
      • Certification Protection
      • Set Security Policies
    • AIP Protect (Pro Only)
    • Remove hidden data
    • Redaction (Pro Only)
    • Windows Information Protection (WIP)
    • FIPS mode
    • Trust settings
  • Signature
  • Accessibility
  • Foxit Admin Console
  • Print
  • Foxit AI Assistant (Available in Subscription Releases and Certain Regions)
  • Appendices

About 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.
  2. Foxit PDF Editor allows you to input Unicode password in the password input box when you open a document protected by Unicode password.