Encrypt a PDF with a password so only people who know it can open the file. Optionally restrict printing and copying. Everything runs in your browser.
OR DRAG & DROP HERE — ONE FILE AT A TIME
Protecting a PDF encrypts its contents: anyone who opens the file must type the password before the pages are shown. This tool applies standard PDF encryption (AES-256) — the same kind used by professional PDF editors.
Encryption runs entirely in your browser. Your PDF and password are never sent to any server and never stored.
Standard PDF encryption with a 256-bit AES cipher (PDF 2.0 security handler), the same kind used by professional PDF editors. Files open normally in Acrobat, Chrome, Edge, Firefox and most PDF readers after you type the password.
No. PDF encryption has no backdoor — neither we nor anyone else can recover a forgotten password. Store it in a password manager and never rely on a 'hint' to remember it.
Yes. Tick the restrictions before protecting: 'prevent printing', 'prevent copying' and 'prevent editing'. These are permission flags stored in the encrypted file — most PDF readers honor them.
Yes — if you know the password. Load the protected file here with its password (a PDF Unlock tool is planned), or open it in a PDF editor and save without restrictions.
Yes. The password prompt is handled by the PDF reader app itself — iOS Files, Android PDF viewers and desktop readers all support password-protected PDFs.
No. Encryption happens locally in your browser — the file and the password never leave your device.