TOOL · 16 · PDF

Protect / Unlock PDF

Add a password to a PDF or remove one you already know.

Processed 100% in your browser — your files never leave your device.

Drop files here or click to browse

One PDF file

No signup · No watermark · Files never leave your device · Up to ~300 MB recommended

Choose a password

How it works

Step · 01
Pick a mode — add a password or remove a password you already know.
Step · 02
Encryption runs entirely in your browser. Passwords never leave your device.
Step · 03
Download the newly protected or unlocked PDF.

Is this tool really free?: Yes. Every tool on EasyFileMagic is 100% free with no signup, no watermarks, no page limits, and no software to install.
Are my files uploaded to a server?: No. Files are processed directly in your browser using JavaScript and WebAssembly. Nothing is uploaded to our servers, so your documents never leave your device.
Does it work on mobile?: Yes. The tools run in any modern browser on desktop, tablet, or mobile (Chrome, Edge, Safari, Firefox). Very large files may be slower on low-end phones.

This tool is also indexed for French, German and Arabic keywords.

Français

Protéger PDF gratuit : ajoutez un mot de passe à un PDF ou retirez-en un que vous connaissez déjà, sans upload.

Deutsch

PDF schützen kostenlos: Fügen Sie ein Passwort zu einem PDF hinzu oder entfernen Sie eines, das Sie bereits kennen.

العربية

حماية PDF بكلمة مرور مجاناً: أضف حماية بكلمة مرور إلى ملف PDF أو أزل كلمة مرور معروفة.