Signature Maker app icon: one cream ink loop with a long tail over a faint signing line, on a deep blue tile Signature Maker

Signature Maker: an electronic signature maker that signs PDFs on iPhone

Draw or type a signature that looks like yours in under a minute, export it as a clean transparent PNG, and sign any PDF from Mail or Files. It works offline, and nothing leaves your phone.

Download on the App Store

For iPhone. Making and saving signatures is free, and so are your first export and your first signed document.

The Create screen: a signature, Jordan Ellis, drawn in black ink on a wide sheet of paper above a thin signing line, with the four pens, four inks and the Save signature button The export screen: the signature on a gray and white checkerboard that shows its background is transparent, with Transparent PNG chosen and the 3x size in pixels Page 2 of a lease agreement with the signature on the tenant signature line and the date beside it, above the Signature, Initials, Date and Text tools
A signature that looks like yoursSmooth ink with a finger or Apple Pencil. Ink thickens and thins with your speed or pressure, Ballpoint is even, Marker is bold, Fountain is thick on the way down. Four inks, three thicknesses, undo, and a wide mode for long names.
Or type itYour name in twelve script fonts, shown as live previews, rendered to the same quality as a drawn one.
A real transparent PNGCropped to the ink with a small margin, at 2x or 3x, shown on a checkerboard and at the foot of a letter. Also PNG or JPG on white, Save to Photos and Copy.
Sign a PDF and send it backOpen it from Mail or Files, place your signature, initials, the date or a line of text on any page, drag and pinch to fit, and save a signed copy. The original is never changed.
Your librarySaved signatures and their initials, named, in your order, one of them the default for the next document.

Private

Everything stays on your iPhone. No account, no sign-in, no uploads, no cloud, and it works in airplane mode. Signed copies go only where you send them.

Signature Maker creates a signature image and places it on your document. It does not verify identity or certify signatures.

Questions

How do I make a transparent signature PNG?

Open the app and draw your signature on the paper, or tap Type instead and pick a script font. Tap Save signature. On the next screen Transparent PNG is already chosen, shown on a checkerboard so you can see where it is clear. Tap Share to send it to Mail, Messages or Files, or tap Save to Photos or Copy. The file is cropped to your ink with a small margin, at 2x or 3x, ready for an email footer, Word, Canva or a form.

How do I sign a PDF from Mail?

In Mail, tap the PDF attachment, tap Share and choose Signature Maker. The document opens with its pages. Tap Signature to place your saved signature, drag it onto the line, and pinch or pull its corner to size it. Tap Done signing. A new file named after the original with “signed” added is saved, and Send it back opens Mail or the share sheet. The original attachment is never changed. Files from the Files app work the same way, or open them from the Documents tab.

Is a signature made this way legally binding?

Signature Maker creates a signature image and places it on your document. It does not verify identity or certify signatures, and it keeps no audit trail. Whether a signature added this way is accepted depends on the document, the person asking for it and where you live. If a document needs an identity-verified electronic signature, ask the sender which service they require.

Is anything uploaded?

No. Your signatures and documents stay on your iPhone. There is no account, no sign-in, no analytics and no server, and the app works in airplane mode. Files go only where you send them. The privacy policy has the details.

What does Pro cost?

Making and saving signatures is free, and so are your first export and your first signed document. Pro adds exports and signed documents with no corner mark, all four pens and all twelve script fonts, initials, and the date and text stamps. It is $4.99 a week with 3 days free for new subscribers, $19.99 a year, or $39.99 once for lifetime. Prices are in US dollars and can differ by country.