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PDF Security

Protect & Encrypt PDF Files

Add a strong password to your PDF document to prevent unauthorized viewing. Encrypt your confidential files instantly and securely.

Select a PDF file
Drag & drop a PDF here, or click to browse
Max 20MB file size
Set a strong password
Encrypting Document... 0%
🎉 Your PDF is now protected!
Download Protected PDF

Strong Encryption

We use robust 128-bit AES encryption to lock your files.

Restrict Access

No one can open or view the document without the password.

Auto Deleted

Your files are permanently deleted from servers after processing.

How to Add Password to PDF

1

Upload PDF

Drag and drop the PDF file you want to protect into the secure upload area above.

2

Set Password

Type a strong password and confirm it. Make sure you remember it, as it cannot be recovered.

3

Lock & Download

Click "Protect PDF" to encrypt the file. Download your locked document instantly.

Frequently Asked Questions

Is this PDF protector tool free?
Yes, ToolTiny's PDF protection tool is 100% free to use. There are no hidden fees, subscriptions, or watermarks added to your documents.
What kind of encryption is used?
We use industry-standard 128-bit AES encryption. Once your PDF is encrypted, the contents are completely unreadable to anyone who does not possess the correct password.
Can you recover my password if I forget it?
No. For your absolute security, we do not store your passwords or your files. If you forget the password you set, the file cannot be opened or recovered by us. Please keep your password safe!
Is it safe to upload confidential documents here?
Absolutely. All connections are secured with SSL encryption. Uploaded files and the generated protected files are automatically and permanently deleted from our servers shortly after processing. No human ever sees your file.

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