Protect PDF
Secure your PDF documents with password encryption. Set user and owner passwords, control permissions for printing, copying, and editing.
Upload PDF to Protect
Click or drag and drop your PDF file here
Max 50MB per file
What Is This Tool?
Password-protect your PDF files online for free with ToolifyPDF's Protect PDF tool. Toolify uses industry-standard AES encryption to lock your documents, preventing unauthorized access, printing, or copying. No software installation is needed. Upload your PDF, set a strong password and your permission preferences, and download the encrypted file instantly.
How to Use
Upload Your PDF
Upload the PDF you want to password-protect.
Set a Password
Enter a strong password and choose your permission settings (printing, copying, etc.).
Download Protected PDF
Click "Protect PDF" and download your encrypted, password-locked file.
100% Free
No hidden charges
Files Auto-Deleted
After processing
No Sign-Up
Just upload & go
Any Device
Mobile & desktop
Key Features
AES Password Encryption
Your PDF is encrypted using industry-standard AES encryption on Toolify.
Permission Controls
Restrict printing, copying text, and editing independently.
Open Password Support
Set a password that must be entered before the PDF can even be opened.
No Registration Required
Protect your PDF in seconds on ToolifyPDF — no account or subscription needed.
Frequently Asked Questions
What encryption is used?
Toolify uses AES-128 or AES-256 encryption depending on your settings, which is industry standard.
Can the password be recovered?
No. If you lose the password, the file cannot be unlocked. Keep it in a safe place.
Can I set different passwords for opening and editing?
Yes. You can set an open password and separately set an owner password for permissions.
Does protection affect PDF quality?
No. Adding a password does not change the content, quality, or size of your PDF.