PDFYay

Your file never leaves your device

Unlike most online PDF tools, PDFYay does all processing inside your browser. Nothing is uploaded.

How to sign a PDF in three steps

  1. 1

    Open your PDF

    Drag a file in or pick one. It loads instantly and stays on your device.

  2. 2

    Add your signature & fields

    Place a signature, checkmarks, text or a date. Move and resize anything.

  3. 3

    Download the signed PDF

    Export a flattened, signed PDF with an audit hash. Done — no account, ever.

Add your signature, checkmarks, text and dates right in your browser. Your file is never uploaded to a server — every edit happens locally on your device. Read the guides.