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Free pdf privacy tool

Put a password on a PDF.

Password protection is useful for a quick extra layer, but it is not a substitute for encrypted messaging or access control. The workspace can encrypt or decrypt PDFs and will warn you when a file needs a password.

No watermark· No account needed for tools

SPDF privacy / Open PDF security
document.pdfREADY

This tool

Open PDF security

Add a simple password layer to a document you need to send.

Private by default

Browser tools run on your device. Heavy conversion and OCR only use the service when you choose them.

01 / HOW IT WORKS

Three steps. No setup.

Add a simple password layer to a document you need to send.

01

Open the workspace

Add the PDF as a project.

02

Choose Protect PDF

Set the password and run the operation.

03

Share the password separately

Never send the password in the same message as the file.

Private where it matters

Browser-based edits and conversions keep the file on your device. Server features are used only when you choose them.

A clean result

No watermarks, no forced sign-up and no lock-in. Download the PDF and keep working wherever you like.

One workspace

Edit, sign, scan, convert, merge and organise without jumping between ten different websites.

02 / QUESTIONS

Good to know.

What encryption is used?+

The workspace uses standard PDF encryption. For high-security requirements, use a dedicated document security platform.

Can I remove a password?+

Yes, with the Unlock tool if you know the current password.

Does password protection stop screenshots?+

No. A password controls opening the PDF, not what a recipient can do after opening it.