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Attachment to signed copy

How to sign a PDF from Mail or Files on iPhone

Move an email attachment or saved PDF into PDF Sign & Scan, add a signature, and return the signed copy.

Quick answer

From Mail or Files, tap Share and choose PDF Sign. If it is not visible, choose More or save the PDF to Files, then import it from inside the app.

Step by step

  1. 01

    Open the attachment

    In Mail, tap the PDF to preview it. In Files, press and hold the PDF or open it.

  2. 02

    Send it to PDF Sign

    Tap Share and choose PDF Sign. The share extension accepts one PDF at a time. You can also save to Files and import from the app.

  3. 03

    Add the signature

    Continue in the app, tap Sign, choose your saved signature, and place it on the correct page.

  4. 04

    Return the PDF

    Tap Send after checking the document. Pick Mail to reply with the signed copy, or Save to Files for later.

PDF SIGN & SCAN

Your real signature, ready when the PDF arrives.

Scan it once. Place it carefully. Send the signed copy from your iPhone.

App Store

If PDF Sign is missing from Share

  • Scroll to the end of the app row and choose More, then enable PDF Sign.
  • Open PDF Sign once after installing it so iOS can prepare its shared storage.
  • For a damaged or restricted PDF, ask the sender for a fresh, signable copy.

Questions

Can I sign without leaving Mail?

The share extension can prepare the document and offers a quick-sign flow when a saved signature and Pro access are available. The full editor opens in PDF Sign for deliberate placement and review.

Does the original attachment change?

No. The app creates a signed export that you share as a separate copy.