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iPhone PDF signing

How to sign a PDF on iPhone

Open a PDF, add your real handwritten signature, resize it, and share the signed copy from your iPhone.

Quick answer

In PDF Sign & Scan, import the PDF, tap Sign, choose or create a signature, place it on the page, then tap Send to share the finished PDF.

PDF SIGN & SCANPDF Sign & Scan showing a handwritten signature being placed and resized on a PDF

Step by step

  1. 01

    Bring in the PDF

    Open PDF Sign & Scan and choose a PDF from Files. You can also scan a paper document or import an image.

    Bring in the PDF. PDF Sign & Scan showing a handwritten signature being placed and resized on a PDF
    PDF SIGN & SCAN / 01
  2. 02

    Tap Sign

    Choose a signature you saved earlier. If this is your first time, scan one from paper or draw it on screen.

    Tap Sign. PDF Sign & Scan showing a handwritten signature being placed and resized on a PDF
    PDF SIGN & SCAN / 02
  3. 03

    Place it precisely

    Drag the signature to the line. Pinch to make it smaller or larger. Check the correct page before finishing.

    Place it precisely. PDF Sign & Scan showing a handwritten signature being placed and resized on a PDF
    PDF SIGN & SCAN / 03
  4. 04

    Share the signed copy

    Tap Send. The app creates a flattened PDF and opens the iOS share sheet so you can save or send it.

    Share the signed copy. PDF Sign & Scan showing a handwritten signature being placed and resized on a PDF
    PDF SIGN & SCAN / 04

When Apple Markup is enough — and when it is not

  • Markup works well for a quick one-off signature drawn with your finger.
  • Use PDF Sign & Scan when you want the handwriting from paper, a reusable signature library, or more deliberate placement across PDF pages.
  • Keep the original PDF until you have checked the signed export.

Questions

Can I sign a PDF from the Files app?

Yes. Choose the PDF from Files inside the app, or use the iOS share sheet to send it to PDF Sign & Scan.

Can I resize the signature?

Yes. Drag to move it and pinch to resize it before exporting the PDF.

Your real signature, ready when the PDF arrives.

Download on the App StoreFor iPhone and iPad