Download · Dawn Doc

macOS

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First launch

Open the disk image and drag Dawn Doc to Applications.

Apple hasn't notarised Dawn Doc yet, so macOS asks you to allow it once:

On macOS 15 and later, the first launch says Apple could not verify Dawn Doc. Click Done, open System Settings › Privacy & Security, scroll down to Security and click Open Anyway beside the message about Dawn Doc, then confirm. macOS may ask for your password.
On macOS 14 and earlier, Control-click Dawn Doc in Applications, choose Open, then Open again.

Or run this in Terminal before the first launch:

xattr -dr com.apple.quarantine "/Applications/Dawn Doc.app"

Windows

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First launch

Run the installer. It has no code-signing certificate yet, so SmartScreen may say "Windows protected your PC": choose More info, then Run anyway.

Linux

Looking for the installers…

First launch

On Ubuntu 24.04 and later, install the .deb. It brings its own AppArmor profile, so Chromium's sandbox works:

sudo apt install ./dawndoc_*_amd64.deb

The AppImage runs on most distributions: make it executable with chmod +x DawnDoc-*.AppImage and run it. It needs fusermount3 (the fuse3 package), which most desktop distributions include. On Ubuntu 24.04 and later it runs without Chromium's sandbox, and says so when it starts, unless you add the AppArmor profile below.

Keep the sandbox with the AppImage on Ubuntu 24.04 and later

Move the AppImage to ~/Applications (the profile covers only that folder, in every user's home) and make it executable:
```
mkdir -p ~/Applications && mv DawnDoc-*.AppImage ~/Applications/ && chmod +x ~/Applications/DawnDoc-*.AppImage
```
Save this profile as /etc/apparmor.d/dawndoc-appimage, for example with sudoedit /etc/apparmor.d/dawndoc-appimage. Its name is not dawndoc, because the deb owns /etc/apparmor.d/dawndoc: it replaces that profile when it installs and deletes it when it is removed.
```
abi <abi/4.0>,
include <tunables/global>

profile dawndoc-appimage /home/*/Applications/DawnDoc*.AppImage flags=(unconfined) {
  userns,

  include if exists <local/dawndoc-appimage>
}
```
Load it (Ubuntu loads it again at every boot), then start the AppImage from ~/Applications:
```
sudo apparmor_parser -r /etc/apparmor.d/dawndoc-appimage
```

To remove it: sudo apparmor_parser -R /etc/apparmor.d/dawndoc-appimage && sudo rm /etc/apparmor.d/dawndoc-appimage

The profile lets any program at that path create user namespaces. Its path, /home/*/Applications/DawnDoc*.AppImage, covers every user's ~/Applications, and each user can write to their own. So on a machine you share, any user, or anything running as one, that puts a file named DawnDoc*.AppImage in their own ~/Applications can use user namespaces too (Chromium's own guidance on this restriction says the same of such profiles). That is still far narrower than turning the restriction off for the whole system.

Download Dawn Doc

macOS

First launch

Windows

First launch

Linux

First launch