> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pensiv.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Using the desktop app

> What exists only in the pensiv you install: three extra settings tabs, file backups, multiple windows, the tray, and automatic updates.

pensiv runs almost the same when you open it in a browser. What only the installed app does is reach directly into this device's files, windows, and fonts.

## Settings gains three more tabs

**System** and **Fonts** in the **System** group, and **Sync Settings** in the **Project** group, appear in the desktop app only. In a browser they drop out of the list entirely.

* **System** — startup behavior, Close to tray, Obfuscate screen, and [Reset cache](/en/settings/system).
* **Fonts** — **Import Font** brings font files from your computer into the app. It takes `ttf` · `otf` · `woff` · `woff2`.
* **Sync Settings** — the last sync time, pending changes, and [project backup](/en/settings/sync-and-backup).

**UI Zoom** and **Translucent window** in the **Appearance** tab of the **General** group also show in the app only.

## The manuscript stays on this device as a file

The app saves the project separately as a `.pnsv` file. A browser has no such file. Press `Ctrl`/`Cmd` + `S` and it writes on the spot.

Double-click a downloaded `.pnsv-theme` · `.pnsv-template` · `.pnsv-plugin` file and the app comes up and moves on to the install step.

## Opening several windows

Choose **Open in New Window** from the menu on a tab or a sidebar item and one more window opens holding that screen alone. You can spread the manuscript across one monitor and a character sheet across the other.

## The app stays after you close the window

The pensiv icon stays in the Windows tray and in the Mac menu bar. Choose **Show** and the window comes back up; choose **Quit** and it ends completely then. What happens when you close the window is set in **System** under settings.

## The app fetches updates itself

Once a new version finishes downloading, a dialog asks whether to restart and install now. Press **Restart & Install** and it applies right away. If you are holding on to a manuscript, you can put it off with **Later**.

## If the window keeps dying

When the window dies suddenly, the app reloads it on its own. If it still keeps happening, a dialog appears asking you to restart the app.