System requirements
Updated 24 Aug 2026 · Applies to macOS & Windows
Omitly is a desktop app. It runs on your own machine and needs very little.
What you need
- macOS: a Mac running macOS 11 Big Sur or newer. There are two builds — Apple silicon and Intel — so pick whichever matches your machine (Apple menu → About This Mac shows which chip you have). Everything — opening, redacting, saving and verifying PDFs — works from macOS 11 up, on both builds.
- Windows: a currently supported 64-bit version of Windows. Omitly also needs the Microsoft Edge WebView2 Runtime, which the installer downloads if it is missing.
- Enough free disk space for the app and the documents you’re working on.
What you don’t need
- No account. There’s nothing to sign up for or sign in to.
- No internet connection to redact. Opening, redacting, saving and verifying all work offline. See Where does your PDF go?
- No server or admin infrastructure for a single install.
The app can reach the network for its own updates and for in-app support, but your documents are never part of that traffic.
Related
Still stuck?
Tell us what's not working — include your Omitly version (More ▾ → About Omitly) and your operating system, and we'll usually reply within one business day.
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