PDF Lock/Unlock Tool
Secure your PDF documents or remove existing password protection
About This Tool
Our PDF Lock/Unlock Tool allows you to add password protection to your PDF files or remove existing passwords (with proper authorization). Whether you need to secure sensitive information or regain access to a protected document, this tool provides a simple solution.
The tool offers both basic password protection and advanced permission settings to give you complete control over your PDF security.
Upload Your PDF File
Drag & drop your PDF file here or click to browse
File:
Status: Checking…
Add Password Protection
Permission Settings
Restrict what users can do with your document:
Remove Password Protection
How to Use
To Lock a PDF:
To Unlock a PDF:
PDF Security Information
Understanding PDF Password Types
Owner Password: Provides full access to the PDF, including the ability to change security settings and permissions.
User Password: Required to open the document. Without it, the PDF cannot be viewed at all.
Security Best Practices
- Use strong, unique passwords for important documents
- Keep track of your passwords in a secure password manager
- Consider using different user and owner passwords for maximum security
- Remember that PDF security is primarily a deterrent and may not stop determined attackers