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Every tool you need to work with PDFs in one place

Our tools are 100% FREE and easy to use! Merge, split, compress, convert, rotate, and watermark your PDFs with just a few clicks — no uploads, your files never leave this device.

Everything runs locally in your browser using open-source PDF engines. Files are processed on your device and are never sent to a server.

Sign PDF Online Free

Add your signature to any PDF in seconds — draw it with your mouse or finger, or type your name and pick one of 10 signature styles. Most everyday agreements don't need a notary — a clear electronic signature does the job.

How to sign a PDF

  1. Open your PDF in the Sign PDF tool.
  2. Create your signature: draw it with mouse or finger, or type your name and choose one of 10 signature styles — adjust size and color.
  3. Click the page to place your signature, drag it to the right spot and resize it.
  4. Download the signed PDF.

Why use PDFZippy for this

Tips for best results

Frequently asked questions

How do I sign a PDF on my phone?

Open the file in Sign PDF on your phone's browser and draw your signature with your finger — it's the most natural way on touchscreens.

Is an electronic signature legally valid?

In many countries electronic signatures are legally accepted for most documents, but rules vary by document type and jurisdiction. For high-stakes contracts, check your local requirements.

What signature styles are available?

Type your name and choose from 10 handwriting-style fonts with adjustable size and color — or draw your signature freehand with mouse or finger.

Can two people sign the same PDF?

Yes. One person signs and downloads, then the other opens that file and adds their signature.

Is my signature uploaded to a server?

No — everything, including your signature, stays in your browser.

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