Sign PDF
Sign PDFs in seconds: draw, type or upload your signature and tap where it goes.
- Runs in your browser
- Up to 100 MB
- No signup
Drop the PDF you need to sign
PDF up to 100MB · opens right here in your browser
Choose filePrivate by design. Your PDF is opened and saved on this device. It is never uploaded to a server.
How to use Sign PDF
Open your PDF
Drop the document to sign. It opens in a full-screen signing view, right in your browser.
Create and place your signature
Draw it, type it in a handwriting style, or upload a photo. Tap where it goes, then add initials, dates, text or ticks.
Download the signed PDF
Your original text stays sharp and selectable. The file never leaves your device.
How to sign a PDF online
Printing a document just to sign it, then scanning it back, wastes paper and time and produces a blurry file. Sign PDF lets you add a real-looking signature to any PDF in a minute, on a computer, tablet or phone, without creating an account or uploading the document.
Three ways to create a signature
Choose whatever feels most natural:
- Draw it with a mouse, trackpad, finger or stylus.
- Type your name and pick one of six handwriting styles.
- Upload a photo or scan of your signature on paper; the white background is removed automatically.
Filling in the rest of the form
Most documents need more than a signature. Add initials, today's date in the format you choose, free text for names and addresses, and check or cross marks for tick boxes. Everything you type is saved as real, selectable text. To initial every page, select your initials and press All pages to copy them to the same spot throughout.
Is it legally binding?
Sign PDF creates a simple electronic signature, which many jurisdictions accept for everyday agreements such as leases, consent forms, offer letters and delivery notes. Contracts that legally require an advanced or qualified signature with identity verification need a dedicated e-signature service.
Private and non-destructive
Your PDF is opened and saved inside your browser. Signatures you create are kept only while the tab is open. The download is a new copy with your additions on top, and the original text, links and quality are preserved.