PDF Encrypt

Password protect PDFs with 256-bit encryption. Set permissions for printing, copying, and editing.

0 documents protected this month

Drop PDF file here or click to browse

Upload a PDF file to encrypt with password protection

Maximum 10MB per file

100% Secure: Your files and passwords are encrypted and never stored. Processing happens in real-time and files are immediately deleted

Password Protection

Users will need this password to open the PDF

Required to change permissions or remove encryption later

Document Permissions

PDF encrypted successfully! Download should start automatically.

How to Password Protect a PDF Online

Secure your PDFs with 256-bit encryption in seconds

1

Upload PDF

Drag and drop your PDF file or click to browse.

2

Set Passwords

Enter user password (to open) and optionally owner password (to edit permissions).

3

Set Permissions

Choose whether to allow printing, copying, or modification.

4

Download

Your encrypted, password-protected PDF downloads automatically!

Common PDF Encryption Scenarios

See how professionals protect sensitive PDFs daily

Confidential Reports

Protect financial statements, business plans, and sensitive reports before sharing with stakeholders.

Essential for finance teams

Legal Documents

Secure contracts, NDAs, and legal agreements with password protection before client distribution.

Perfect for law firms

Client Deliverables

Prevent unauthorized copying or modification of proposals, designs, and client work products.

Great for agencies

Why Use Our Free PDF Encrypt?

The fastest, safest way to password protect PDFs online

100% Free Forever

No sign-up, no watermarks, unlimited use. Completely free.

Bank-Level Security

Files encrypted during upload and deleted immediately after processing.

Lightning Fast

Process PDFs in seconds. No upload limits, no waiting in queues.

Original Quality

PDFs processed without compression. Preserve formatting and quality.

No Annoying Ads

Clean, distraction-free interface. Just your PDFs and nothing else.

Frequently Asked Questions

Everything you need to know about PDF encryption

Is PDF encryption completely free?

Yes! Our PDF encryption tool is 100% free with no file limits, watermarks, or hidden fees. Encrypt as many PDFs as you need with 256-bit AES encryption.

Are my passwords safe?

Absolutely. Passwords are never stored or logged. They're only used during the encryption process and discarded immediately. All processing happens in real-time on our secure servers.

What's the difference between user and owner passwords?

User password is required to open the PDF. Owner password allows changing permissions or removing encryption. You can set one or both - if only user password is set, permissions cannot be changed later.

How strong is the encryption?

We use 256-bit AES encryption, the same standard used by governments and financial institutions worldwide. This is considered highly secure and virtually unbreakable with current technology.

Can I remove encryption later?

Yes, but you'll need the owner password (or user password if no owner password was set). Use a PDF tool that supports decryption and provide the password to remove protection.

What if I forget my password?

Due to strong 256-bit encryption, passwords cannot be recovered. Make sure to store your passwords securely. We recommend using a password manager.

Can people still view an encrypted PDF?

Only if they have the user password. Without it, the PDF cannot be opened. Permissions (printing, copying, modification) can be restricted separately even for those with the password.

What's the maximum file size I can encrypt?

You can encrypt PDF files up to 10MB in size. This is sufficient for most documents, including those with dozens of pages and embedded images.

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