Sign documents on your iPhone.
Open a PDF from Mail, Files or any app, or scan a paper form. Draw your signature once, place it with a tap and send the signed PDF back in under a minute.
Coming soon to the App Store
Private by design: your documents never leave your iPhone.
Private by design
No account
No sign-up, no password, no cloud. Open the app and sign.
Stays on your iPhone
Documents and signatures are stored only on your device. We never see them.
Face ID lock
Lock the app so nobody else can open your documents.
Everything you need to sign, nothing you don’t
Sign
- Draw your signature and initials once and reuse them in every document.
- Move, resize and recolor a signature right on the page.
- Add text and today’s date to fill in forms.
Scan
- Turn paper into a clean PDF with the document scanner.
- Crop, rotate and pick color, grayscale or black and white.
Send
- Share the signed PDF to Mail, Messages or any app.
- Save to Files or print.
Free and Pro
Free
- Up to 3 documents
- Sign, add text and dates
- Exported pages carry a small “Signed with Nib” line
Nib Pro
- Unlimited documents
- Document scanner
- Export without the line
Weekly or yearly subscription, or a one-time lifetime purchase. Prices are shown in the app.
Nib places an image of your signature on the document. It is not a certified electronic signature. Read the terms