JustSign: Easy Document Signer

Productivity

Only for Mac

Free · In‑App Purchases

Mac

So easy your parents can do it. JustSign is the simplest way to sign documents on your Mac. No accounts, no uploads, no learning curve — just draw and double-click. How it works: 1. Open your document — PDF, Screenshot, or Photo 2. Draw your signature with the mouse, or snap a photo of it on paper 3. Double-click anywhere on the page to place it — drag to move, resize to fit 4. Export a clean, signed PDF ready to send Your documents stay yours. JustSign works offline — no Wi-Fi needed, no account to create. Your documents and your signatures never leave your Mac. Ever. Made for everyone who's tired of printing, signing, and scanning just to send back one document.

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JustSign is now free to try — download and start signing in seconds. Minor improvements included.

Version 1.03

The developer, K LABS NYC LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
K LABS NYC LLC
Size
909.4 KB
Category
Productivity
Compatibility
Requires macOS 15.0 or later.
  • Mac
    Requires macOS 15.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 K LABS NYC LLC
  • Developer Website
  • Privacy Policy

    • More by K LABS NYC LLC