Native macOS app

One thing.
Signing PDFs.
Done right.

PDF Signery does a single job — putting your signature on a document — and obsesses over doing it better than anything else. Draw it, scan it, or sketch it on your iPhone. Place it. Flatten it. Done.

Download for Mac See the ink trick
PDF Signery window: a service agreement PDF with a signature being placed, signature library in the sidebar

The whole idea

Most PDF apps do everything.
This one signs.

No editor. No converter suite. No cloud platform with a PDF viewer attached. Every pixel of PDF Signery exists for one moment: your signature, on the page, exactly right.

What you'll never find here

  • Accounts, sign-ins, free trials
  • Cloud upload or sync — there is no network code at all
  • Subscriptions
  • Form builders, page editors, file converters
  • Toolbars on toolbars on toolbars

What you will find

  • Your signature, exactly where you want it
  • Ink that looks like ink, not a rubber stamp
  • Signatures flattened permanently into the page
  • A document that never leaves your Mac
  • An app that opens instantly and stays out of the way

Creating a signature

Your signature,
three ways in.

However you sign best — with a pen, a trackpad, or your phone — it ends up in your library as clean, transparent ink, ready to reuse on every document.

Draw it

Velocity-sensitive ink: slow strokes pool wide, fast flicks run hairline, ends taper. Three inks and a custom color picker — your trackpad finally signs like a pen.

Trackpad & mouse

Scan it

Import a photo or scan of your pen-and-paper signature. The paper disappears automatically on the way in — lighting, shadows and off-white included.

PNG · JPEG · TIFF

Sign on iPhone or iPad

Take Photo, Scan Documents, or Add Sketch with Continuity Camera — straight from the Add Signature menu. It lands in your library, background already removed.

Continuity Camera

iPhone → Mac

Photograph it on your iPhone.
It's ink on your Mac.

Choose Take Photo right from the Add Signature menu — Continuity Camera hands the shot to your Mac, where PDF Signery crops it and lifts the ink off the paper. About ten seconds, start to finish.

the photo appears on your Mac

Photograph it — Take Photo, right from the Add Signature menu

Crop to the ink — automatic trim, or drag the handles

Paper gone — the background is removed on arrival

Place it — then ⌘S flattens it into the page for good

A signature photographed on paper, after PDF Signery removed the background — clean transparent ink

Photograph on iPhone → cropped to the ink → background removed → ready to place.

Signature background removal

Paper in.
Ink out.

Drop in a photo of your signature and PDF Signery lifts the ink off the page. It estimates the paper locally, pixel by pixel — so gradients, vignetting and textured off-white vanish in one pass, where a single white threshold would fail.

  • Automatic on import — scans arrive already transparent.
  • Gentle ↔ Aggressive slider — a live preview over the checkerboard, updating in about 2 ms.
  • Crop to the ink — automatic trim, with a manual crop when you want control.
  • Non-destructive — the original is always kept, so re-editing starts from pristine pixels.
The same signature after PDF Signery removed the paper background — clean transparent ink
Original photo of a pen-and-paper signature before background removal
Paper Ink
Drag the handle — an ordinary phone photo becomes reusable transparent ink.

Everything else it does

One job. Every detail sweated.

Natural ink

Strokes render with real pen physics — width follows speed, ends taper, edges keep a subtle organic wobble. Preview and export use the same renderer, down to the pixel.

Permanent on save

⌘S flattens signatures into the page content itself — not floating annotations that can be moved, copied or stripped. What you see is literally what's in the file.

A library of you

The full signature, the initials, the formal one. Rename, reorder and reuse them across every document — the library persists between launches.

Pixel-precise placement

Drag onto any page, resize aspect-locked, nudge a point at a time with the arrow keys. Full undo and redo — even after saving.

Private by design

No accounts, no analytics, no network code whatsoever. Your documents and your signatures never leave the Mac they're on.

Featherweight & native

Built on SwiftUI and PDFKit, 1.6 MB on disk. It launches instantly, scrolls smoothly, and respects your battery and your desktop.

How it works

Signed in under a minute.

  1. 01

    Make your mark

    Draw it, import a scan, or beam it from your iPhone. It's cleaned automatically and kept in your library for good.

  2. 02

    Place it

    Open any PDF — drag-and-drop works — then click or drag your signature onto any page. Resize, nudge, move it until it sits exactly right.

  3. 03

    ⌘S — done

    Signatures flatten permanently into the document. Save in place, or ⇧⌘S to export a signed copy. Send it anywhere — it opens everywhere.

The last signing app
you'll need to try.

One app, one job — signing PDFs, done right.

Download for Mac

macOS 15 Sequoia or later · Apple Silicon · Direct download, signed & notarized