PDF protection tool

Add password protection and permissions to your PDF files to control access, printing, copying, and editing.

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< 15ms

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About This Tool

This comprehensive PDF Protection Tool allows you to securely protect your PDF documents with multiple layers of security. Upload any PDF file and set user/owner passwords to control access. Configure detailed permissions to restrict printing, copying, editing, and form filling. Add visible watermarks for additional document protection. All processing happens securely in your browser with optional server-side enhancements for advanced features. The tool supports all standard PDF security levels and provides immediate download of your protected document.

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How to Use

Upload your PDF file by clicking the upload area or dragging and dropping
Set a user password (required to open the document) and owner password (required to change permissions)
Configure permissions: choose which operations to allow (printing, copying, editing, etc.)
Optionally add a watermark text for visible protection
Click 'Protect PDF' to process your document
Download your protected PDF file with the new security settings

Frequently Asked Questions

Find Quick Answers

What PDF security levels does this tool support?

The tool supports 128-bit AES encryption (standard PDF security) with configurable permissions for printing, copying, editing, and form filling.

Can I remove protection from a PDF with this tool?

No, this tool only adds protection to PDF files. To remove protection, you would need the owner password and a different tool.

Is my PDF file secure during processing?

Yes, all processing happens locally in your browser using JavaScript. For advanced features, optional server-side processing uses secure temporary storage that is immediately deleted after processing.

What's the difference between user password and owner password?

User password is required to open and view the PDF. Owner password is required to change permissions and security settings. You can set both or just one depending on your needs.

What file size limits apply?

For browser processing, files up to 50MB are supported. For larger files or advanced features using server-side processing, files up to 100MB can be processed.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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