Sign PDFs on iPhone
The contract arrives as a PDF and somehow the answer is a printer, a pen, and a scanner. Scanner App skips all three: draw your signature once, save it, and place it on any document with a tap.
- Save multiple signatures and initials, reuse them anywhere
- Drag, resize, and place your signature exactly where it belongs
- Sign a scan you just took or a PDF someone emailed you
How signing works
- 1. Open the document: scan the paper version, or import a PDF you received.
- 2. Draw once: sign with your finger and save it. You only do this the first time.
- 3. Place it: tap where the signature goes, then drag and resize until it sits right.
- 4. Send: export the signed PDF and share it straight from your phone.
Print, sign, scan is three steps too many
The old routine means finding a working printer, wasting a sheet of paper, signing it, then scanning it back and hoping the result is legible. It turns a thirty second task into a twenty minute errand, and it usually happens when you are nowhere near an office.
Signing on the phone removes the round trip entirely. The signature lands on the original PDF at full quality, so the document you send back looks like a document, not a photograph of one.
Your signature stays on your device
A saved signature is sensitive. Scanner App keeps yours on the phone: there is no account to create and no upload step, and signing works with no internet connection at all.
Need the paper version first? The document scanner turns it into a clean PDF in seconds, and our guide walks through signing a PDF on iPhone without printing.
Frequently Asked Questions
How do I sign a PDF on my iPhone?
Open the PDF in Scanner App, draw your signature once with your finger, and place it on the page. Drag and resize it, then export the signed PDF.
Can I save more than one signature?
Yes. You can save several signatures and initials, which is useful if you sign on behalf of more than one person or need separate initials for multi-page contracts.
Can I sign a PDF someone emailed me?
Yes. Import the PDF into Scanner App, sign it, and export it back. You do not need to print or scan anything.
Is a signature added this way legally valid?
An image of your signature on a PDF is widely accepted for everyday agreements, and it is the same thing you produce by printing and scanning. For contracts that require a certified digital signature, check what the other party asks for.
Signing guides from the blog
Sign it and send it back
No printer, no scanner, no delay. Works offline, free to download.
