Sign a PDF Online — Free, No Signup, No Uploads
Add a signature to a PDF in under 30 seconds. WT-PDF gives you three ways to create one: Draw it with your mouse or trackpad, Type your name in a script font, or Upload a photo of a signature you scanned. The signature is baked into the final PDF as a real image — it prints and renders everywhere.
Open the editorHow to sign a PDF
- Open wt-pdf.com and drop in your PDF.
- Click the Sign tool in the toolbar.
- Choose Draw (mouse/trackpad), Type (scripted text), or Upload (PNG/JPG of an existing signature).
- Click on the page where the signature should go. Drag corners to resize; drag the body to move.
- Download — the signature is embedded as an image in the PDF.
Why browser-based matters
Your signature is identity-sensitive. Tools that upload your PDF to a server have a copy — and if the document is a contract, lease, settlement, or HR form, that's a real leak risk. WT-PDF never uploads your file. Open DevTools → Network and you'll see zero outbound traffic while you sign.
Tips for a good-looking signature
- Drawing with a trackpad looks shaky. A mouse works, but a phone stylus or Wacom tablet is best.
- Typing uses a script font (Dancing Script, Great Vibes, etc.) — looks clean on formal docs.
- Uploading a scan usually looks most like your real signature. Sign a white piece of paper with a black pen, photograph it with good lighting, and upload.
FAQ
Is this a "legally binding" e-signature?
In the US, UK, EU, and Canada, a drawn or typed signature on a PDF meets the ESIGN / UETA / eIDAS bar for most everyday contracts. For regulated transactions (some real-estate closings, certain government filings) you may need a certificate-backed digital signature — WT-PDF's signatures are images, not X.509 digital signatures.
Can I save a signature to reuse?
Signatures are saved to your browser's localStorage for this device, so you can sign subsequent PDFs without redrawing. Clearing site data removes them.
Will the signature print correctly?
Yes. It's a real image embedded in the PDF — every viewer (Acrobat, Preview, browsers, print spoolers) renders it identically.
Can I sign on a phone?
Yes — open wt-pdf.com in mobile Safari or Chrome, upload the PDF, and draw with your finger.
Can I add initials?
Create a second signature with just your initials and place it wherever needed.
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