Free Online Password Protect PDF Online
Add encryption to sensitive contracts, tax forms, and personal records. Set a strong password and confirm it before downloading your protected PDF.
Click to upload or drag & drop a PDF file here
Supports single PDF files
100% Private & Secure — Local Browser Processing
Your privacy is our top priority. Unlike other online tools, we never upload your files to any server. Everything is processed instantly inside your web browser.
- Zero Server Uploads: Sensitive data never leaves your device.
- 100% Safe: Perfect for confidential business contracts and personal PDFs.
- Instant Speed: No queueing or waiting for server downloads.
How to use this tool
- Upload the PDF you want to secure.
- Enter a password and confirm it in both fields.
- Click Protect PDF to encrypt the file locally.
- Download your password-protected PDF and store the password safely.
Frequently asked questions
Is it safe to use ToolVX online PDF tools? Will my files be uploaded?
Absolutely safe. ToolVX uses advanced client-side processing technology. Your PDF files stay entirely within your local browser throughout the entire process — never uploaded to any third-party server. Your privacy and business data are 100% protected.
Is this PDF tool completely free? Are there any limitations?
Our tools are completely free for everyone — no hidden fees, no registration required. You can process your documents unlimited times with full efficiency.
Why choose ToolVX over other large PDF converters?
Because we pursue zero-latency and lightweight processing. No complex software or plugins needed — just a browser, and you can process files in seconds on Windows, Mac, or mobile devices.
