# Installing CogniPage

> Download and install on macOS or Windows, and check you got the file we published.

Source: https://cognipage.io/docs/install

**Get it from** [cognipage.io/#download](https://cognipage.io/#download) · free to download, no card needed to try

## What you need

**macOS**

macOS 12 (Monterey) or later, on Apple Silicon or Intel. Signed with an Apple Developer ID and notarised by Apple.

**Windows**

Windows 10 or 11, 64-bit. Microsoft Edge WebView2 is fetched during install if your machine does not already have it.

Around 400 MB of disk space is enough to begin with. If you later switch on [on-device transcription](https://cognipage.io/docs/watch-along), its speech model adds between 32 MB and 181 MB depending on which one you choose — and only then.

## Installing on macOS

1. **Download the right build**
   The download page picks for you, but if you are choosing by hand: **Apple Silicon** for M1 and later, **Intel** for older Macs. Not sure? Apple menu → *About This Mac* tells you which chip you have.
2. **Open the `.dmg`**
   Double-click the downloaded file. A window opens with the CogniPage icon and an Applications shortcut.
3. **Drag CogniPage into Applications**
   Then eject the disk image — you can delete the `.dmg` afterwards.
4. **Open it from Applications**
   The first launch takes a few seconds longer while macOS verifies the notarisation. Because our builds are signed and notarised, you should not see a security warning at all.

## Installing on Windows

1. **Download the installer**
   A single `.exe`. It installs CogniPage and nothing else — no toolbars, no bundled offers, no browser extensions.
2. **Run it**
   The installer is code-signed, so Windows names **Kenaff Limited** as the publisher instead of warning you about an unknown one. On a very new release SmartScreen may still show *"Windows protected your PC"*, because it weighs how widely a version has been downloaded as well as who signed it — choose **More info** → **Run anyway** once you have [confirmed the publisher](#verify).
3. **Follow the installer**
   If WebView2 is missing, Windows fetches it as part of the install. Windows 11 always has it already.

## Checking you got the file we published

Right-click the installer → **Properties** → **Digital Signatures**. A genuine build is signed by **Kenaff Limited**. From PowerShell, in your Downloads folder:

```
Get-AuthenticodeSignature .\CogniPage_*_x64-setup.exe | Format-List Status, SignerCertificate
```

`Status` reads `Valid`. A signature that is missing, invalid, or names anyone else did not come from us — don't run it.

Every Windows release also publishes a SHA-256 checksum next to the download, if you would rather check it that way:

```
Get-FileHash .\CogniPage_*_x64-setup.exe -Algorithm SHA256
```

On macOS none of this is needed — the Apple Developer ID signature and notarisation already do it, and macOS refuses to open a modified build.

## The first launch

CogniPage opens on **Home**, with permission cards at the top. Nothing is captured yet: capture cannot start until you grant the operating-system permissions and approve a source. Both are covered next, in [Granting permissions](https://cognipage.io/docs/permissions).

> **Closing the window does not quit the app.**
>
> Closing tucks CogniPage into the menu bar (macOS) or system tray (Windows) so it can keep reading along while you work in other apps. Use *Quit CogniPage* in that tray menu to stop it entirely. It never starts itself when you turn your computer on.