Sign a PDF on iPhone
Open the PDF, draw your signature with your finger, tap where it goes and save. Right here in Safari — no app or account needed.
How to sign a PDF on iPhone
Choose the PDF
Tap “Choose a PDF file” and pick it from Files, iCloud Drive, or Downloads (save email attachments to Files first).
Draw or type your signature
Draw with your finger in the box, or type your name and pick a handwriting style.
Tap to place, then save
Tap the spot on the page, adjust the size, and tap Download — then Save to Files or share it back.
The built-in way: Markup in the Files app
iPhone has a signature tool built in, and it is a good option:
- Open the PDF in the Files app (or tap an attachment in Mail).
- Tap the Markup button (pen icon).
- Tap +, choose Add Signature, sign, then drag it into place and tap Done.
Use this page when you also want to add today’s date, sign several spots in one go, or pick a typed signature style — and when you want the same steps on any phone or computer.
Why people use Sign PDF on iPhone
“Sign and return by tonight.”
Sign on your phone wherever you are and send it straight back.
“Parent signature required.”
Sign school forms in a minute, without a printer.
“Please sign the attached offer letter.”
Add your signature and date, then reply with the signed PDF.
Your signature stays on your phone
The document and your signature are combined by Safari on your iPhone. Nothing is uploaded, so contracts and personal forms remain private.
Finger-friendly
A large drawing area that works well on a phone screen.
Add the date
One tap adds today’s date next to your signature.
Multiple spots
Sign every page that needs it before saving.
No upload
Processed entirely in Safari.
Frequently asked questions
How do I sign a PDF from an email on iPhone?
Tap the attachment, tap Share, choose Save to Files. Then open this page, choose the file, sign, and attach the signed PDF to your reply.
Is a finger-drawn signature legally valid?
In many countries a simple electronic signature is accepted for everyday agreements, but rules vary by document and country. For high-stakes contracts, check what the other party requires.
Does it work on iPad?
Yes, and you can sign with Apple Pencil.
Can I reuse my signature next time?
Your signature is not stored anywhere — we keep nothing. Drawing it again takes a few seconds.
Are my files uploaded anywhere?
No. Your files are opened and processed by code running in this browser tab. Nothing is sent to a server — you can confirm it in your browser’s Network panel, or by turning off Wi-Fi after the page loads.
Is it really free?
Yes. No daily limits, no sign-up and no watermark. Because the work happens on your device, it costs us nothing to run — the site is supported by unobtrusive ads.