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Quick workflow
How to Protect a PDF Online
Select a PDF, set your password and encryption permissions, and save the protected version instantly. Fast, on-device processing preserves your privacy.
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1
Import document
Select a PDF or drag and drop it into the workspace.
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2
Set Password & Permissions
Choose a password and set granular permissions for printing, copying, and modifying.
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3
Save result
Download your encrypted PDF file directly to your device.
FAQ
Frequently Asked Questions
Have questions? Find answers to the most common questions about our tool below.
Are my passwords sent to your server?
No. The encryption process happens entirely on your device. Your passwords and documents are never sent to our servers.
What encryption standard is used to protect my PDF?
You can choose between RC4 (128-bit) and AES (128-bit or 256-bit) encryption. AES 256-bit is the most secure and is recommended for sensitive documents.
Can I prevent people from printing my PDF?
Yes. By unchecking the 'Printing' permission and setting an admin password, you can restrict users from printing your document. Note that some third-party PDF readers may ignore these restrictions.