Secure your PDF documents with password protection and permission restrictions. Control who can view, edit, print, or copy your content.
Upload one PDF file to protect • Max 50MB
Our PDF protection tool uses server-side QPDF processing to create truly encrypted PDFs with industry-standard security. Your original PDF content is preserved exactly while applying real password protection and permission controls.
User password only • Prevents unauthorized opening • Allows all actions once opened
User + Owner passwords • Permission restrictions • Prevents printing/copying • Allows viewing and form filling
256-bit AES encryption • All restrictions enabled • View-only access • No printing, copying, or modifications allowed
Drag and drop your PDF file or click to browse and select it from your device.
Choose user password (to open) and/or owner password (for permissions). Use strong passwords for better security.
Select which actions to allow: printing, copying, editing, annotations, form filling, etc.
Click "Protect PDF" to apply encryption and download the secured document.
User password is required to open and view the PDF. Owner password allows changing security settings and permissions. You can set one or both depending on your security needs.
256-bit AES is military-grade encryption used by governments and banks. It would take billions of years to crack with current technology, making your PDFs extremely secure.
Yes, if you have the owner password, you can remove protection using PDF editing software. Always keep your passwords safe and consider creating an unprotected backup.
Browser Limitation: JavaScript in web browsers cannot create truly encrypted PDFs due to security restrictions. This tool demonstrates the protection interface and creates an informational PDF. For real protection, use server-side processing (PHP, Python, Node.js) or desktop software (Adobe Acrobat, PDFtk).
For real PDF protection: (1) Use server-side libraries like TCPDF (PHP), PyPDF2 (Python), or PDF-lib server (Node.js), (2) Desktop software like Adobe Acrobat Pro or free PDFtk, (3) Online services with server processing like SmallPDF or ILovePDF, or (4) Export from LibreOffice/Word with password protection.
Yes! All processing happens locally in your browser. Your PDF files and passwords are never uploaded to our servers, ensuring complete privacy. However, since browsers can't create encrypted PDFs, this tool only demonstrates the interface.