How to Sign a PDF on iPhone
You don't need the Markup tool buried in Mail or Files. Sign your PDF right in Safari — upload, sign with your finger, and download.
Sign a PDF on iPhone in 3 Steps
Step 1: Open the PDF in Safari
Visit EasyPDFSign in Safari and upload your file from Files, Photos, or a Mail attachment.
Step 2: Draw Your Signature
Sign with your finger directly on the screen, or type your name in a signature font instead.
Step 3: Save or Share
Download the signed PDF to your Files app, or share it directly via Messages, Mail, or AirDrop.
iPhone Markup vs EasyPDFSign
| Feature | EasyPDFSign | iPhone Markup (Mail/Files) |
|---|---|---|
| Where to find it | One upload screen | Buried in the Mail attachment menu or Files > Markup |
| Signature reuse | Saved for next time | Redraw or dig through saved signatures each time |
| Works from any app | Only from Mail or Files preview | |
| Send to someone else to sign |
Why Sign PDFs on iPhone with EasyPDFSign
No App Install
Works entirely in Safari or Chrome for iOS — no App Store download required.
Finger-Friendly Signing
Draw a natural-looking signature with your finger, sized to fit any signature line.
Share Straight From Your Phone
Save to Files or share via AirDrop, Messages, or email without ever opening a laptop.
Frequently Asked Questions About Signing PDFs on iPhone
Can I sign a PDF on iPhone without downloading an app?
Yes. EasyPDFSign works in Safari or any iOS browser, so there's nothing to install from the App Store.
How do I sign a PDF sent to my iPhone in Mail?
Open EasyPDFSign in Safari, upload the PDF attachment from the Mail app or your Files app, sign it with your finger, then share the signed copy back by email.
Does iPhone have a built-in PDF signature tool?
Yes, Markup in Mail and Files can add a signature, but it's harder to find and doesn't save your signature as conveniently as EasyPDFSign.
Is signing a PDF on iPhone with EasyPDFSign secure?
Yes. Files are transferred over 256-bit SSL encryption and automatically deleted from our servers after processing.
Can I sign a PDF on iPhone and send it back by email?
Yes. After signing, download the PDF to your Files app or use the share sheet to send it directly through Mail, Messages, or AirDrop.
Sign Your PDF on iPhone in Under a Minute
No app, no account, no hassle. Just upload, sign with your finger, and share.