Sign a PDF on iPhone, free

You can sign a PDF on your iPhone without installing an app. Open KamiSign in Safari, choose your file, draw your signature with your finger and download the signed copy. You can do it as a guest, with no account, and your PDF stays in your browser unless you choose to send it or save it.

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How to sign a PDF on iPhone in 4 steps

1. Open kamisign.com in Safari and tap Choose PDF to sign. You can pick a file from the Files app, iCloud Drive or a download in Safari.
2. Create your signature. Tap Sign, then draw with your finger. Prefer typing? Enter your name and choose a cursive style instead.
3. Place it on the page. Tap the spot where you need to sign. Add the date, text or a checkbox from the toolbar at the bottom of the screen.
4. Download the signed PDF. The signature is built into the page, so the file looks the same in Mail, Messages, WhatsApp and on a computer.

Where is my signed file?

After you download, Safari usually saves the PDF to the Downloads folder in the Files app. From there you can share it by email, WhatsApp or AirDrop, or upload it to the website that asked for it.

Tips for a clean signature on a small screen

• Turn your phone sideways for more room to draw.
• Use the Clear button and redraw until you are happy with it.
• Pick the ink color that matches the document. Blue and black are the most common.
• Zoom in on the page before you place your signature so it lines up with the signature line.

Need others to sign too?

Create a free account to send a document for signature by email, SMS or WhatsApp, and track who has signed. Your signers do not need an account either. For the full guide to signing on any device, see sign a PDF online.

Does it work on Android and computers?

Yes. KamiSign runs in the browser, so the same steps work in Chrome on Android and in any modern browser on a Mac or PC.

Frequently asked questions

Do I need to install an app?
No. Everything runs in your browser.

Is it free?
Yes. The Free plan lets you sign any PDF.

Is my document uploaded?
If you sign as a guest, your PDF stays in your browser. It is uploaded only when you send it or save it to your vault. See our privacy policy.

Is an electronic signature legally valid?
Electronic signatures are recognized in many countries, but the rules vary by country and document type. Check what applies to you. This is not legal advice.

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