Download MoGuan PDF
The web version needs no install and never uploads your files either. The desktop version is for something else: once installed it runs with the network off — the strongest form of "your files never leave your computer." All four surfaces share the same processing core.
Latest v0.2.0 · 2026-07-13
macOS
All 24 tools run locally. Signed with a Developer ID and notarized by Apple — it just opens, no "unidentified developer" block. Auto-updates included.
Not sure which? Click → About This Mac and look at "Chip".
Windows
x64 installer (NSIS). All 24 tools run locally. Auto-updates included.
Download for Windows · 134 MBYou'll see a blue SmartScreen prompt on first run
The Windows build isn't code-signed yet, so Windows shows "Windows protected your PC" the first time. That doesn't mean anything is wrong with the app — it means this publisher hasn't paid for a Microsoft-recognized certificate. To continue: click "More info" in the dialog, then "Run anyway". If you'd rather not, the web version does exactly the same things with no install.
iOS
MoGuan on iPhone and iPad, straight from the App Store.
View on App StoreCommand line / CLI
For developers and batch work: 17 commands, self-contained and fully offline (OCR language data bundled), scriptable and CI-friendly. Requires Node.js ≥ 22.13.
npx moguan-pdf --helpFAQ
How is the desktop version different from the web version?
Capability and privacy are identical — they share the same processing core and neither uploads your files. The difference is that once the desktop app is installed it works completely offline, without a browser, and suits repeated batch work better. If you only need it occasionally, the web version is plenty.
Does the desktop version cost anything?
No. Every local tool in the desktop app is free with no quota wall — it's your computer's CPU processing your own files, so charging admission would be wrong. (AI features, which do cost server money, are metered by account tier, exactly as on the web.)
Does it really work with the network off?
Yes. The local tools (merge, compress, split, watermark, OCR, and the rest) need no network at all — the installer already bundles every dependency, including the Chinese and English OCR language data. That's the desktop app's most concrete advantage over the web version.
Why does the macOS build open cleanly while Windows shows a warning?
Because the macOS build has an Apple developer certificate and is notarized, while the Windows build doesn't yet have a Microsoft-ecosystem code-signing certificate (a separate purchase). It's a cost issue, not a safety one — the code is identical. Windows users can click "More info → Run anyway".
Does the desktop app update itself?
Yes. Both macOS and Windows builds have auto-update built in: they check at launch and every few hours, and prompt you when a new version ships. Updates come from the same GitHub Releases linked on this page.