How to sign a document without a printer or scanner

The whole “print it, sign it, scan it, send it back” routine assumes you own two machines most people don’t have at home anymore. The good news: for almost every document you’ll be asked to sign, you need neither. Your iPhone replaces the printer and the scanner.

There are really only two situations. Either the document is already digital (it landed in your email or Files), or it’s a piece of paper sitting in front of you. Here’s how to handle each — the free way first, honestly, then the faster way if you sign things often.

If the document is already a PDF (email, Files, a download)

You never needed the printer in the first place. Sign it where it is.

Free, built in — iOS Markup:

Open the PDF (tap the attachment in Mail, or open it from Files).
Tap the Markup icon (the pen tip in a circle) in the top corner.
Tap + → Signature → draw one with your finger, or reuse a saved one.
Drag it onto the signature line, resize, tap Done, then reply or share.

This is genuinely enough for a one-off. If you sign something twice a year, stop here — you don’t need an app.

Where Markup gets tedious is the repeat case: the signature is a raw finger-scribble you redraw each time, dates and initials are fiddly manual text boxes, and a lease that wants your initials on every page turns into real work. If that’s you, the full walkthrough for adding a signature to a PDF on iPhone covers the app route, and there’s an honest side-by-side of the best app to sign documents without printing — free Markup through to cloud e-sign services.

If the document is on paper (this is the “no scanner” part)

You don’t scan it — you photograph it, and your iPhone turns the photo into a clean PDF for you. No flatbed scanner required.

Free, built in — the Notes scanner:

Open Notes, start a note, tap the camera icon → Scan Documents.
Hold the phone over the page — it auto-detects the edges and de-skews it.
Tap Save. You now have a crisp, straightened PDF (share it out, or keep it in Notes).
Sign that PDF with Markup exactly as above, or in a signing app.

The Files app has the same scanner (tap ⋯ → Scan Documents), and both do a far better job than a raw camera photo — no shadows, no keystone distortion, no coffee-stained desk in the frame.

Then sign the scan. If you started from paper, the specifics of importing and placing your signature are covered in how to sign a scanned document on iPhone.

The faster route if signing is a regular thing

Once “print–sign–scan” becomes “photograph or open, then tap,” the remaining friction is the signature itself. That’s where a dedicated app earns its place:

Open the PDF (or the scan you just made) and tap Share → Signed, or import it directly.
Your saved signature, initials and an auto-filled date are one tap each — drop them where they belong. You create the signature once: draw it properly, type your name in a real handwriting style, or let AI generate one from your name.
Tap Finish — you get a clean, flattened PDF (the signature is merged into the page, not a floating annotation someone could drag off) — and share it straight back.

After the one-time setup the whole round trip is under a minute, and it looks identical on every document. It’s also local-first: the PDF never leaves your phone, which matters more than usual when the thing you’re signing is a lease or a contract.

Is a document signed this way “real”?

For the everyday paperwork this guide is about — leases, permission slips, freelance contracts, waivers, offer letters — placing a signature image on the PDF is the standard way these get signed in practice, and it’s what the sender expects when they email you a document. Honest caveats:

Whether any signature (ink included) is legally sufficient depends on your jurisdiction, the document type, and the agreement between the parties. Signed is a signing tool, not legal advice.
For high-stakes documents — deeds, court filings, notarized instruments — ask a lawyer or use a certified e-signature service with identity verification.
Prefer a flattened export over a floating annotation, so the signature can’t be moved or removed later.

More on that trade-off: electronic signature vs wet signature.

The short version

Already a PDF? Open it → Markup → sign → send. No printer needed, ever.
On paper? Notes → Scan Documents → sign the PDF. No scanner needed.
Doing this often? A signing app makes your real signature, date and initials one tap each — Signed does it local-first, or grab a reusable signature from the free signature generator first.

The printer and scanner were never the point. Getting the signed document back was — and your phone does both jobs in less time than warming up a printer.