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How to Sign a PDF on iPhone

Open the PDF in Safari, right on this page. Draw your signature with your finger, add your initials and the date, and place them exactly where they go.

Runs on your device. Your file is not uploaded.

Free to open, fill and preview. Downloading the result needs PDF Tower: $89.99 a year or $12.49 a month. See pricing

How to sign a PDF on iPhone

  1. Open this page in Safari on your iPhone.
  2. Tap Choose a PDF and pick the file from your iPhone or iCloud Drive. If the PDF came by email, tap the attachment, tap Share, then Save to Files first.
  3. The PDF opens with Sign selected. Tap the spot where your signature goes.
  4. Draw your signature with your finger. Or switch to Type to type your name, or Upload to use a photo of your signature. Tap Use this signature.
  5. Drag the signature to move it, and use its corner handle to resize it. Tap Initials or Date to add those the same way. For a date, Today fills in today's date.
  6. Tap Download. Safari saves the signed PDF to the Downloads folder in the Files app. Or tap Share, then Save to Files, Mail or Messages.

The free way: Markup in the Files app

Your iPhone can sign a PDF for free. Open the PDF in the Files app, tap Markup, then Add Signature, and sign with your finger. If that is all the document needs, it is a good option.

When PDF Tower helps

  • Sign and fill together: type into the form's fields, tick boxes, then sign, all in one file.
  • Initials and dates: add initials on every page that asks for them, and dates in MM/DD/YYYY.
  • Reuse your signature: tick Remember on this device to keep it in Safari for next time. It is never uploaded.
  • A clean download: the signature is drawn into the page when you save, so it looks the same in any PDF reader.
  • Official forms: government forms open from the agency's current edition. Browse official forms

Good to know

  • Whether an electronic signature is accepted is up to whoever receives the document. Some official forms ask for an original ink signature. Check the form's own instructions.
  • PDF Tower does not send documents to other people for signature. You share the signed file yourself.
  • A photo of your signature on white paper works best for Upload.

What's free and what's paid

Opening a PDF, filling it on screen and the live preview are free, with no account. Downloading, printing or sharing the filled, signed or edited file needs a plan: PDF Tower is $89.99 a year or $12.49 a month, and the monthly plan cancels anytime. Compare plans

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