Protect PDF Online — Free
Add password protection to your PDF files online for free. Secure your sensitive documents with strong 256-bit AES encryption. Prevent unauthorized access to your confidential PDFs.
Drop your files here
or click to browse (max 3 files, up to 50MB)
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How to Protect PDF
1
Upload
Drag and drop your files into the upload area above
2
Configure
Set your preferences using the options provided
3
Download
Click Process and download your result file instantly
Frequently Asked Questions
How strong is the encryption?▼
We use 256-bit AES encryption, which is the same standard used by banks and governments.
Can the password be recovered if forgotten?▼
No, we do not store your password. Make sure to remember it or keep it in a safe place.
Can I protect multiple PDFs with the same password?▼
Yes, upload up to 3 PDFs and they will all be protected with the password you set.