Encrypt a PDF with a password. Prevents unauthorized access. Processing is 100% local — your password never leaves your browser.
Upload the PDF to protect
Set a password (user and optional owner password)
Download the encrypted PDF
Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
0 bytes uploaded. PDF Password Protect runs entirely in your browser using pdf-lib and pdfjs-dist. Your file stays on your device at all times. No data is sent to any server.
No. Encryption happens entirely in your browser. Your password never touches our servers.
Encryption is performed by a self-hosted qpdf WebAssembly build using AES-256 (AESV3 256-bit) — the strongest standard PDF security handler.
Remove password protection from a PDF you own. Enter the current password to create an unlocked copy.
Open toolSet permissions to prevent printing, copying, or modifying a PDF. Protect intellectual property with owner passwords.
Open toolRemove author, title, producer, creation date, and all metadata from a PDF. Essential for privacy before sharing.
Open tool