What's the difference between Personal and Studio?

Personal ($39) is for one person — unlimited use on one active device at a time. Activate on a new device and the old one signs out. Studio ($199) is for teams and commercial client work — unlimited team members, early access to new tools, and a commercial license.

Do I need an account?

No. Use any tool free up to 5 times per day on compute-heavier tools, and unlimited on lightweight ones. No card, no account, no signup required.

Where are my files processed?

Right on your device. Files never upload to any server. Everything runs in your browser — you can verify in DevTools → Network.

What happens if I use my Personal license on a second device?

The new device activates and the old device signs out. Your license key stays the same — you just move it between devices as needed. No limit on how often you switch.

Does this work on my phone?

Yes. Every tool works on iPhone, Android, tablet, and desktop.

What if I want a refund?

30-day money-back guarantee on both tiers. No questions asked. Email sales@cipherforces.com.

Will you add more tools?

Yes. New tools ship regularly. Your license includes every tool we ever release — Studio members get early access.

Pdf

Password Protect PDF

Add a password to lock your PDF.

PrivateWorks OfflineNo Account

100% Private Works Offline Instant

Drop your PDFs here

or click to browse

Max 100MB

Protect your PDFs

Add a password and control who can print, copy, or edit. Everything stays on your device.

0/5free today

Deep dive

About Password Protect PDF.

Encrypt Any PDF With a Password

Drop a PDF, set a password, choose the permissions (allow/deny printing, copying, editing), and CipherForces returns an AES-256 encrypted copy. Recipients will need the password to open it. All encryption happens locally — we never see your password or document.

Common Use Cases

Legal documents: Encrypt NDAs, contracts, and closing documents before emailing.
Medical records: Protect health information (HIPAA-sensible — files still need encrypted transport).
Financial statements: Encrypt bank statements before sending to an accountant.
Tax returns: Protect sensitive IRS filings during file transfer.

Key Features

AES-256 encryption: Modern encryption recognized by every PDF reader.
Permission controls: Restrict printing, copying text, or modifying even after password entry.
Owner + user passwords: Set different passwords for full access vs view-only.
No password-strength compromise: Supports up to 127-character passphrases.

Privacy: Encryption is done by pdf-lib running in your browser. Your password and file never touch our servers.

Three steps

How to use Password Protect PDF.

Upload your file

Drag and drop or click to select your file.

Choose settings

Adjust quality, size, or format options.

Download result

Your processed file is ready instantly.

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Why CipherForces

Privacy-first tools that work everywhere.

100% Private

From $39

Works Offline

No Account

83 Tools

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Explore all 83 tools

About Password Protect PDF.

Encrypt Any PDF With a Password

Common Use Cases

Legal documents: Encrypt NDAs, contracts, and closing documents before emailing.
Medical records: Protect health information (HIPAA-sensible — files still need encrypted transport).
Financial statements: Encrypt bank statements before sending to an accountant.
Tax returns: Protect sensitive IRS filings during file transfer.

Key Features

AES-256 encryption: Modern encryption recognized by every PDF reader.
Permission controls: Restrict printing, copying text, or modifying even after password entry.
Owner + user passwords: Set different passwords for full access vs view-only.
No password-strength compromise: Supports up to 127-character passphrases.

Privacy: Encryption is done by pdf-lib running in your browser. Your password and file never touch our servers.