Protect PDF

Add a password to a PDF. Set permissions with AES-256 encryption.

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Your file never leaves your browser

No signup required

No daily limit

Always free

How to use Protect PDF

1
Upload your file
Drag and drop your file onto the upload area, or click to browse your device.
2
Choose options
Configure any settings you need, then click the process button.
3
Download result
Your processed file is ready instantly. Click Download to save it.

AES-256 encryption — the same standard used by banks and governments.

Yes. Any standard PDF reader such as Adobe Acrobat, Preview, or Chrome can open password-protected PDFs.

No. Only access is restricted. The PDF looks identical when opened with the correct password.

No. The password is used client-side in your browser and is never sent to any server.

Remove password from a PDF. Enter the password to unlock it.

Add your signature to a PDF. Draw, type, or upload an image.

Add text or image watermark to a PDF. Control opacity and position.