Is Protect PDF Online Free free?

Yes, this tool is 100% free to use for basic tasks.

Yes, we prioritize your security. Files are processed securely and deleted automatically.

Protect PDF Online Free

Encrypt PDF with password

Secure & Private

Fast Processing

No Installation Required

or drop files here

Files stay private. Automatically deleted after 2 hours.

Upload your PDF file.

Set a password and choose permissions.

Download your protected PDF.

Password-Protected Access

Print & Copy Restrictions

Custom Permission Controls

256-Bit PDF Encryption

Add password encryption to your PDF documents

Remove PDF password security

Decode X.509 certificates to a PDF showing subject, issuer, validity, SAN, and fingerprints.

Try our AI-powered chat interface for multi-step document workflows and batch processing.