Install Novus PDF Studio as an App and Work Offline
Novus PDF Studio installs from the browser as a standalone app. Learn how to add it on Chrome, Edge, Android, and iOS, exactly which parts keep working with the network off, and the limits worth knowing before you lose signal.
Written against the Jul 29, 2026 release·what has changed since
A browser tab is a perfectly good place to work on a PDF right up to the moment the connection drops. Airport Wi-Fi that authenticates and then quietly stops routing, a basement meeting room, a train through a tunnel, a client site whose guest network blocks everything interesting — most online PDF services simply stop working there, because the actual page shuffling and form filling happens on their servers.
Novus PDF Studio behaves differently, and going offline is the clearest way to see why. Merging, splitting, rotating, filling, signing, and exporting already run on your device; the network only ever delivered the app itself. Install it once and that delivery step can come from your own machine, which is why the tools keep working when nothing else in the browser does. This guide covers how to install it on each platform, exactly what survives a lost connection, and the limits worth knowing before you need them.
What ‘install’ actually does here
There is no app store, no installer to download, and no account. Installing registers the site you are already on with your operating system, using the web app manifest Novus ships — the small JSON file the W3C specification defines for exactly this. That manifest asks for standalone display with a scope of /, opens at the home page, and carries a Novus PDF short name plus 192px and 512px icons — including maskable variants so Android can crop them into whatever shape the launcher uses.
The practical difference is a separate window with no address bar and no tab strip, an icon on your home screen or dock, and its own entry in the app switcher. The code is identical to the website. Nothing about the way your documents are handled changes — that is worth stating plainly, because ‘install an app’ normally implies a program that can read your disk. This one still only sees the file you hand it through a picker.
Install on Chrome, Edge, or Android
Chromium browsers decide on their own when a site qualifies for installation, then fire an event that Novus intercepts so it can show a tidy prompt instead of the browser’s default one. When that prompt appears, it has an Install button that opens the native confirmation dialog.
- 1
Wait for the prompt, or use the menu
If the in-page banner has not appeared, open the browser menu and look for ‘Install’ or an install icon at the right of the address bar. Both routes end in the same place.
- 2
Confirm the install
The browser asks once. Accepting creates the launcher icon and opens Novus in its own window.
- 3
Pin it where you will find it
On desktop, drag it to the taskbar or dock. On Android it lands on the home screen automatically.
If you choose Not now, that decision is remembered locally and the banner stays away — it does not reappear on your next visit or nag you on another page. You can still install at any time from the browser’s own menu.
Add it to the Home Screen on iPhone or iPad
iOS gives websites no programmatic way to install themselves, so on iPhone and iPad the prompt shows instructions instead of a button: tap Share, then Add to Home Screen. The hint is deliberately limited to Safari, because that is the only iOS browser where the Home Screen route exists — open Novus in Chrome or Firefox on iOS and no hint appears, since it would send you to a menu item that is not there.
What keeps working with the network off
A service worker — the background script the web platform provides for exactly this, sitting between the page and the network — stores the app’s own build output: its JavaScript, styles, icons, and the HTML for the home page, the editor, the tools hub, and a dedicated offline page. Pages you have already opened keep their code on the device as well, so the second visit to a tool is served locally whether or not you have a connection.
- Every document operation. Merge, split, organize, rotate, page numbers, protect, and unlock all run in the tab, so losing the network changes nothing about them.
- Filling and signing. Typing into fields, placing checks, drawing a signature, and exporting a finished PDF are local operations start to finish.
- The file you choose. Your PDF is read from disk through the file picker, never fetched over the network, so there is nothing for a dropped connection to interrupt.
What does not work offline
Honesty is more useful than a clean claim here, so: the first visit must be online, and a page you have never opened may not be available. If you navigate somewhere uncached with no connection, you get an offline notice with links back to the editor and tools rather than a browser error page. The editor also pulls in a sizeable PDF rendering engine the first time you use it — open it once while connected and it is there afterwards.
A two-minute pre-flight before you lose signal
- 1
Install or add to Home Screen
Do this while you still have a connection, on the device you will actually be carrying.
- 2
Open the editor once, with a real PDF
This pulls down the rendering engine and proves the round trip end to end.
- 3
Open the tools you expect to need
A quick visit to each tool page is enough to keep its code on the device.
- 4
Put the source files on the device
Documents that live only in cloud storage are not downloadable later. Save them locally first.
- 5
Rehearse in airplane mode
Turn the radios off and do one small export. Five seconds of verification beats discovering a gap at the gate.
Set the editor up for offline use
Open a PDF once while you are connected, place a field, and export. After that first round trip the editor opens and finishes the job with no network at all.
Updating, uninstalling, and getting the prompt back
Updates are automatic and quiet. When a new build ships, the service worker installs it, retires the previous cached version, and takes over — and it deliberately does not reload the page under you when you come back online, because losing an in-progress document to a surprise refresh would be far worse than running a slightly older build for another minute.
Uninstalling is an operating-system action: remove the app from your launcher or home screen exactly as you would any other. The website keeps working in an ordinary tab afterwards. If you dismissed the install prompt and want it back, clearing this site’s data in your browser resets that preference along with your theme and cookie choices — the full inventory is in the companion post on device storage.
Key takeaways
- Installing registers the existing site with your OS as a standalone app — no store, no account, and no change to how documents are handled.
- Chromium browsers show an Install button; iOS Safari shows Share → Add to Home Screen, because iOS offers no programmatic install.
- Every document operation already runs on your device, so merging, filling, signing, and exporting are unaffected by a lost connection.
- The first visit must be online, uncached pages fall back to an offline notice, and ad and analytics slots stay blank offline by design.
- Spend two minutes before you travel: install, open the editor once with a real PDF, open the tools you need, and rehearse an export in airplane mode.
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Reviewed and maintained by
Novus Stream Solutions Editorial Team
The Novus Stream Solutions Editorial Team maintains Novus PDF Studio's product documentation, tutorials and PDF explainers. The team checks product claims against the current browser-local implementation and tests, prefers primary specifications and vendor documentation, and corrects material errors openly. The byline identifies the responsible organization; it does not imply a named expert or professional adviser.
Privacy note: every tool mentioned in this article runs entirely in your browser. Nothing is uploaded or queued on a server. A PDF stays in the tab unless you explicitly use Save on this device, which stores that session in this browser without storing passwords. More on the how it works page.