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Gmail attachment to signed PDF

How to sign a PDF from Gmail on iPhone

Open a PDF attachment from Gmail, add your handwritten signature, and send the signed copy back from your iPhone.

Quick answer

Open the PDF attachment in Gmail, use Share or Open in to send it to PDF Sign & Scan, place your saved signature, then share the signed copy back to Gmail.

Step by step

01
Open the attachment
Tap the PDF in Gmail so the attachment opens in its preview.
02
Send it to PDF Sign
Tap Share or Open in and choose PDF Sign. If it is not listed, choose More or save the attachment to Files first.
03
Place your signature
Choose a saved signature, drag it to the signature line, and pinch to set the size.
04
Return the signed copy
Tap Send, choose Gmail in the iOS share sheet, and attach the exported PDF to your reply.

PDF SIGN & SCAN

Your real signature, ready when the PDF arrives.

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

Before you reply

Open the exported PDF once and check the page, signature size, and orientation.
Keep the original attachment until the recipient accepts the signed copy.
If the sender requires a certificate or signing portal, use that requested process instead.

Questions

What if PDF Sign does not appear in Gmail?

Use More in the iOS share sheet, or save the attachment to Files and import it from inside PDF Sign & Scan.

Does signing change the email attachment?

No. PDF Sign & Scan exports a separate signed copy that you attach to a new message or reply.