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PDF / PROTECT PDF

A password for your pages.

Encrypt a PDF with a new opening password using local AES-256 processing.

Protect PDFOn your device

60 MB total · up to 20 images or 10 PDFs · 300 PDF pages. Rendering/export: up to 80 pages.

    Your originals stay untouched.

    Your settings

    Free. No account. No watermark.

    THREE SIMPLE STEPS

    How to use Protect PDF

    1. Choose a PDF from your device.
    2. Review the settings and process locally.
    3. Download and inspect your copy.

    GOOD TO KNOW

    Keep your password safe. There is no password recovery service. Encryption can affect signatures. This does not configure separate printing or editing restrictions.

    Up to 25 MB per file and 60 MB per batch. This limit protects browser memory, especially on phones.

    A couple of useful answers.

    Are my files uploaded?

    No. The PDF engine runs inside your browser.

    What are the limits?

    Keep your password safe. There is no password recovery service. Encryption can affect signatures. This does not configure separate printing or editing restrictions.

    Are my files uploaded?

    No. These tools process file contents in your browser. Files remain available in this tab until you clear them or close the page. Download a copy before leaving.