Add Password to PDF
The Toolzspan PDF Password Tool lets you add a password to any PDF online for free — directly in your browser, with no sign-up, no upload, and no watermark. Drop your file, set a strong password, and download the encrypted PDF in seconds. Perfect for protecting contracts, invoices, and confidential documents before sharing.
Drag and drop PDF files here
or click to browse
Encrypting...
Protection Applied
No sign-up required. Your files never leave your browser.
How to Add a Password to a PDF Online (3 Easy Steps)
- Upload your file using the area above.
- Adjust any settings or options if necessary.
- Click the process button to start the tool.
- Wait while your file is securely processed.
- Download your resulting file immediately.
Why Add a Password to a PDF? (And When You Need To)
- 100% Free — No hidden fees or limits.
- Fast Processing — Get your result in seconds.
- Private & Secure — Your files stay on your device.
- Cross-Platform — Works seamlessly on desktop, tablet, and mobile.
Add Password to PDF — Frequently Asked Questions
Yes. Add Password to PDF is 100% free with no registration required. Process PDFs with no watermark added and no daily limit on file count. There is no paid tier hiding behind a paywall.
Yes. Files are processed on Toolzspan’s secure server using HTTPS encryption and deleted automatically after encryption. They are never stored, shared, or used for any other purpose.
You can upload PDFs up to 100MB. Larger files may take longer to process but are still supported.
Yes. Process PDFs on iPhone, iPad, or Android directly in Safari or Chrome. Upload from your Files app and download the result straight back to your device. The interface adapts to small screens with thumb-friendly buttons and clear file previews.
The PDF uses 256-bit AES encryption — the same standard used by banks and government agencies. It is virtually unbreakable without the correct password.
There is no recovery option — the encryption is one-way. Always store passwords in a secure password manager before encrypting your PDFs.
Yes. You can restrict printing, copying, and editing while still allowing the file to be viewed by anyone with the password.
Yes. The encrypted file opens in Adobe Reader, Preview, Chrome, and any standards-compliant PDF viewer with the correct password.