Encrypt PDF Online Free

Protect a PDF with AES-256, separate open and owner passwords, and explicit permission controls. · processed on this device

100% local

Protect access

Encrypt a PDF you control

Add AES-256 protection with separate reader and owner credentials, then verify the encrypted copy before download.

AES-256Strong local encryption

Two passwordsSeparate open and owner access

PermissionsChoose printing, copying and editing

＋Select a PDFChoose a local file or drag it hereProcessed on this device · source stays unchanged

No PDF bytes or passwords are sent to a server.

The operation runs in this browser without an implicit file upload.

Native text, vectors, forms, or document structure are preserved whenever the operation supports them.

Configure encrypt pdf with focused options and an honest preview.

Create and download the result without an account or watermark.

Step-by-step

Choose a source file
Select a supported file from your device. The source remains under your control.
Configure encrypt pdf
Review the available settings and preview the intended result before processing.
Process in your browser
The operation runs in this browser without an implicit file upload.
Review and download
Inspect the result, then save the new file. Your original source is left unchanged.

Frequently asked questions

Is Encrypt PDF private?

The operation runs in this browser without an implicit file upload.

Will the output stay searchable?

Native text, vectors, forms, or document structure are preserved whenever the operation supports them.

Do I need an account to use Encrypt PDF?

No. You can use the tool and download its result without creating an account.