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Protect your PDF with 256-bit AES encryption. Add password protection and set usage restrictions.
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Your files never leave your device.
This password will be required to open the PDF.
If provided, the permissions below are enforced. Leave empty for no restrictions.
Unchecked items are blocked for anyone opening with the user password. Ignored if no owner password is set.
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Yes! ChamPDF is 100% free with no hidden fees, no signup required, and unlimited file processing.
Absolutely! All processing happens in your browser. Your files never leave your device, ensuring complete privacy.
No! Process files of any size, as many times as you want, completely free.