As digital documents proliferate, signing PDFs electronically on the go is essential—especially without access to your Mac or PC (see our guide on signing PDFs on Mac or PC). Your iPhone's built-in Markup tool makes it simple to create a reusable signature. I've relied on this for years in professional settings, and it's reliable across iOS versions.
Follow these straightforward steps:
- Open the PDF in the Markup editor (via Files, Mail, or another app).
- Tap the plus (+) icon in the bottom-right corner.
- Select the Signature button.
- If no signatures exist, tap "New Signature" at the top (or the + in the upper-left if not visible).
- Optionally label your signature with your full name, initials, or leave blank.
- Sign with your finger at the bottom of the screen. Use "Clear" to retry, then tap "Done" when satisfied.
- Your signature appears on the document—drag to position and pinch to resize. Tap outside to set it, then make other edits as needed.
- Tap "Done" in the upper-left and save the file.
Next time, open a PDF in Markup, tap Signature, and select your saved one—it drops right in. Manage via "Add or Remove Signature" anytime.
