Protect PDF
Encrypt your PDF with a strong password to prevent unauthorized access.
Upload PDF File
Click to browse or drag and drop your PDF
How to Password Protect PDF?
Secure your sensitive documents with enterprise-grade encryption in seconds.
Upload PDF
Select the PDF file you want to secure with a password.
Set Password
Create a strong password (minimum 3 characters) to lock the file.
Verify
Confirm your password and optionally set an owner password for permissions.
Encrypt & Save
Click 'Protect PDF' to apply AES-256 encryption and download.
Military-Grade Encryption
We use AES-256 bit encryption, the global standard for data security. Your PDF files are protected with a layer of security so strong that even specialized cracking tools find it virtually impossible to break, ensuring your sensitive data remains confidential.
Advanced Permissions
Beyond just a 'User Password', our tool allows you to set an 'Owner Password'. This lets you restrict specific actions like printing, copying text, or modifying the document, giving you granular control over how your files are used.
100% Secure & Private
Encrypt your PDFs for free with the highest privacy standards by processing everything locally.
Privacy First Methodology
At PDFVertex, privacy isn't just a feature—it's our foundation. Our protection tool runs entirely in your local browser environment. Your passwords and your PDF documents never touch our servers, ensuring your most sensitive information stays strictly on your machine.
Frequently Asked Questions
Common questions about securing PDF documents.