Protect PDF with Password — Free Online Tool | OmniPDFSuite
Add password protection to PDF files. Set open password and permissions password to control access and editing rights.
Category: Security & Protection — Protect, encrypt, and secure your PDF documents with enterprise-grade security
How to Use Protect PDF with Password
- Step 1: Upload the PDF to protect
- Step 2: Set open password and/or permissions password
- Step 3: Choose allowed operations
- Step 4: Download the protected PDF
Key Benefits & Features
- AES-256 encryption
- Open and permissions passwords
- Granular permission control
- Print restrictions
- Copy/edit restrictions
Frequently Asked Questions
What is the difference between open and permissions passwords?
An open password is required to view the PDF. A permissions password controls what users can do — print, copy text, edit, etc.
What encryption level is used?
We use AES-256 bit encryption, the highest standard for document security.
Can I set different permissions?
Yes, granularly control printing, copying, editing, form filling, and annotation permissions.
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