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How to Sign a PDF Online (Free)

You don't need a printer, a scanner, or a desktop app to sign a PDF anymore. Here's how to sign any PDF online in under a minute — on your iPhone, Android phone, or web browser — and send it for others to sign too.

Sign a PDF in 3 steps

  1. Upload your PDF. Open ilzam and add the document from your device, email, or cloud storage.
  2. Add your signature. Draw it with your finger, type your name, or upload an image of your signature — then drop it exactly where it belongs.
  3. Download or send. Save the signed PDF, or invite others to sign it from any device.

Tip: Need someone else to sign? Instead of downloading and emailing back and forth, add them as a signer, place a signature field for them, and ilzam notifies them automatically — you'll see the moment they sign.

How to sign a PDF on iPhone

Download ilzam from the App Store, open the PDF inside the app, tap where you want to sign, and draw your signature with your finger or Apple Pencil. Save — done. No printing, no scanning.

How to sign a PDF on Android

Install ilzam from Google Play, import your PDF, tap the signature field, and sign on screen. The signed file is stored securely and ready to share.

How to sign a PDF on the web

Open ilzam in any browser, upload your PDF, add your signature, and download the signed copy — nothing to install.

Is signing a PDF online legal?

Yes — electronic signatures are legally recognized in most countries, including Saudi Arabia. A proper e-signature tool also records a secure audit trail (who signed, when, and from where), which strengthens the document if it's ever questioned. We cover the details in our guide: Are electronic signatures legal in Saudi Arabia?

Read the complete guide: Electronic Signature in Saudi Arabia: The Complete Guide

Sign your first PDF now

Free to start — on iPhone, Android and the web.

Get started with ilzam