Protect PDF Online Free
Add password protection to PDF online
Note
This tool adds basic protection metadata to your PDF. For enterprise-level encryption, consider using desktop PDF software like Adobe Acrobat.
Frequently Asked Questions
How do I add a password to a PDF file?
Upload your PDF, enter a password of at least 4 characters, confirm it, and click Protect PDF. The tool will encrypt your file and automatically download the password-protected version.
What type of encryption is used to protect the PDF?
The tool applies standard PDF encryption that requires the password to open the document. This ensures that unauthorized users cannot view the contents of your PDF without knowing the correct password.
Can I remove the password from a protected PDF later?
To remove protection, you would need to open the PDF with the password and re-save it without encryption using a PDF editor. Always keep your password stored safely, as there is no way to recover it if forgotten.
Is my PDF uploaded to a server during the protection process?
No, the entire encryption process happens in your browser. Your PDF and password are never sent to any server, ensuring that sensitive documents remain completely private and secure.
Are there any limits on the size or number of PDFs I can protect?
There is no hard limit, but very large PDFs may take longer to process since encryption runs in your browser. The tool is free to use with no restrictions on how many files you can protect.