Works on Windows
Compatible with modern Windows computers and laptops.
Protect PDF on Windows Without Software
Password protect PDF files from your Windows PC without installing any software. Encrypt documents securely using your web browser.
Secure PDFs on Windows PCs
Encrypt PDF files directly from your Windows browser.
Whether you use Windows 11, Windows 10, or another supported version, you can protect PDF documents without downloading desktop applications.
With iMZi PDF, upload your file, create a password, and download the encrypted PDF directly from your browser in just a few clicks.
How to Protect PDFs on Windows
Secure your PDF in three simple steps.
1. Upload Your PDF
Choose the PDF file from your Windows computer.
2. Add a Password
Encrypt the PDF using a strong password.
3. Download the Protected PDF
Save the password-protected PDF to your Windows PC.
Why Choose iMZi PDF
Protect PDFs on Windows quickly and securely.
No Software Installation
Everything runs securely in your browser.
Strong Password Encryption
Protect confidential PDF files from unauthorized access.
Private & Secure
Your documents remain private throughout the process.
Password Protect PDFs on Windows
Encrypt PDF documents online without downloading Windows software or desktop applications.
Office Documents
Business Reports
Invoices
Contracts
Personal Files
Confidential Documents
Frequently Asked Questions
Find answers to common questions about this tool.
Protect PDFs on Windows Online
Add password protection to PDF files on your Windows PC without installing software using iMZi PDF.