How do I sign a PDF on my iPhone?
Scan or open the document in PDF Scanner, draw your signature with a finger or stylus, drag it onto the signature line, resize it, and export the signed PDF. The signature is drawn and placed on the device, and the document is never uploaded, which matters because the paperwork people sign is usually the paperwork they least want on someone else's server.
The short version
- PDF Scanner includes a signature tool for drawing a signature and placing it on a page.
- Markup and text insert are also available for filling in dates, initials and form fields.
- Signature drawing and placement happen on the iPhone; the document is not uploaded to a server.
- The signed document exports as a PDF for free with no watermark.
- Multi-page agreements export as a single PDF with the signature on the correct page.
- No account is required; the app runs on iOS 16 or later.
Step by step
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Scan or open the document
Capture the agreement in Document mode if you have it on paper. Square it with crop and perspective fix first — signing a crooked page produces a crooked signature.
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Draw your signature
Open the signature tool and draw with a finger or stylus. Draw larger than feels natural and let the placement step scale it down; a large stroke has smoother curves than a cramped one.
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Place it on the signature line
Drag the signature onto the line, then resize and nudge it so the baseline sits on the printed rule rather than floating above it.
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Fill in the rest of the form
Use text insert for the date, printed name and any typed field, and markup for initialling clauses or ticking boxes.
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Check every page before exporting
Multi-page agreements often need initials on each page as well as a signature at the end. Scroll through the whole document once.
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Export the signed PDF
Export as PDF and send it, or AirPrint a copy if the recipient wants paper. The export is free and unwatermarked.
Frequently asked
- Is a signature drawn on a phone legally valid?
- Electronic signatures are widely accepted for everyday agreements in many jurisdictions, but the rules depend on your country and on the document type — some deeds and notarized instruments still require wet ink or a certified e-signature service. Check the requirement for the specific document rather than assuming.
- Can I reuse the same signature on other documents?
- Yes — draw it once and place it on later documents rather than redrawing each time, which also keeps your signature looking consistent across a set of papers.
- How do I add the date and my printed name?
- Use text insert to type them directly onto the page. Markup handles hand-drawn marks such as ticks, initials and circling a clause.
- Is the document uploaded to be signed?
- No. Signature drawing, placement and PDF export all run on the iPhone using Apple's built-in frameworks, so a signed contract stays on your device until you choose to send it.
- Does signing cost anything?
- Exporting the signed PDF is free and carries no watermark. Purchases in PDF Scanner unlock extras such as additional OCR language packs, not your finished file.
Last updated 2026-07-28