Mobile · 2 min read
How to Sign a PDF on iPhone
Sign contracts and forms on your iPhone in seconds — no app install.
Quick steps
- Open Sign PDF. On iPhone Safari, go to pdfoncall.com/sign.
- Add your PDF. Pick a PDF from Files, iCloud, or attached from Mail.
- Draw your signature. Sign with your finger or Apple Pencil. Place it where needed.
- Download. Save back to Files or send straight from Mail.
Faster than Preview or Mail markup
iOS Mail's markup works but is fiddly on longer documents. PDFOnCall handles multi-page PDFs and lets you place the signature exactly.
Is it legally binding?
In the US and most of the EU, drawn electronic signatures are legally valid for most contracts under E-SIGN and eIDAS. For notarized or highly regulated documents, use a full eSignature service.