You can sign a PDF directly on your iPhone in Safari without downloading any app. Here's how to do it in under a minute.
Open Safari and go to pdfeditor.onl/sign-pdf. The tool is fully optimised for mobile Safari and requires no app installation.
Tap the upload area and choose your PDF from Files, iCloud Drive, or Photos. The document loads directly in your browser.
Use your fingertip on the signature canvas to draw your signature. The canvas is pressure-sensitive and renders a natural ink-like stroke.
Tip: Rotate your iPhone to landscape orientation for a wider canvas — this makes it easier to draw a full, natural signature.
Drag the signature to the correct position on the page, then tap Download. The signed PDF saves to your Files app and can be shared via email, AirDrop, or WhatsApp.
Yes. The tool works identically on iPad and supports Apple Pencil for precise signature drawing.
No. Everything runs in Safari — no app, no account, no subscription.
Yes. The resulting electronic signature has the same legal standing as one created on a desktop.