Tip: add your signature to a Word document without a third-party app.
Using the Files App
If the PDF document is available in the Files app on your iPhone, follow these steps to add a signature to the PDF: Note: the signature will be added to the original PDF file only.
Using Safari
If you need to sign a PDF document in Safari on your iPhone, use the steps below. The PDF file can be accessed via the Files app.
From Apple Mail
Follow these steps to sign a PDF document from the Mail app on your iPhone: Tip: learn how to compress PDF files on mobile and PC.
From the Gmail App
If you received the PDF file in the Gmail app, follow these steps to sign a PDF in the iPhone Gmail app: You can add a signature to Google Docs too!
Using Apple Notes
To sign a PDF on iPhone using the Notes app, follow these steps: Tip: if you want to share the signed PDF, tap on the “Share” icon when the PDF is in full-screen mode and choose an app to export it.
Manage Multiple Signatures in iPhone Markup Editor
The markup editor lets you save more than one signature. Follow these steps to manage signatures and add a new one to your PDF document: Tip: add PDF shortcuts to your phone’s home screen to keep your favorite documents handy. All screenshots and images by Mehvish Mushtaq.