In this video, I walk you through how adding a signature in iPhone Notes works in 2026—specifically using the built-in Markup tools that are already inside the Notes app. If you’re trying to sign a document, approve something quickly, or just drop a handwritten signature onto an attachment, I show you the simplest way to do it without installing extra apps. No fluff—just the feature you need and where to find it. I cover the common real-world cases: signing PDFs or images attached to a note, drawing your signature with your finger or Apple Pencil, and what to expect depending on your iOS version (because the exact “save and reuse” behavior can vary). The big takeaway is that Notes isn’t just for typing—it has solid Markup tools for quick signatures, and once you know where the Markup button lives, it’s fast. I also touch on the practical side of secure handling—because if you’re signing something important, you should understand what you’re actually saving and sharing.