Protect PDF

Keep your document private with AES-256 password encryption, right in your browser.

Select a PDF file

or drop a PDF file here

Free to use · No signup · Up to 100 MB per file

Your documents are processed in this browser. They are never uploaded to Toolvix.

Protect PDF Online — Add Password Encryption

Choose a PDF file from your device. Each file can be up to 100 MB, subject to available browser memory.

Enter and confirm a new password of at least six characters. Encrypt the PDF, then check that the downloaded file opens with your chosen password.

Select Protect PDF, download the result and check it before sharing. Keep your original files.

Toolvix cannot recover it. Keep the password safely; encryption is performed in the browser using AES-256.

Document processing runs in your browser. No signup is required. For details about website traffic and browser storage, read our privacy policy.