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In Debian-based images, there are some Podman dependencies that are marked as recommended, but are essential for rootless containers. These dependencies will not be installed in our Dangerzone environments, due to the `--no-install-recommends` flag. Our approach was to find these dependencies through trial and error, and hardcode them in our image. Turns out though that there are some dependencies (e.g., `netavark`) that may be necessary in some Debian flavors, and not others. In order to not impact the readability of the env.py file, we prefer installing Podman with all of its recommended packages. On one hand, this will make the image size of our Debian-based Dangerzone environments slightly larger, but on the other hand, it will make CI tests less flaky. |
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| .circleci | ||
| .github/workflows | ||
| assets | ||
| container | ||
| dangerzone | ||
| dev_scripts | ||
| install | ||
| share | ||
| tests | ||
| .gitignore | ||
| .grype.yaml | ||
| BUILD.md | ||
| CHANGELOG.md | ||
| INSTALL.md | ||
| LICENSE | ||
| Makefile | ||
| poetry.lock | ||
| pyproject.toml | ||
| README.md | ||
| RELEASE.md | ||
| setup-windows.py | ||
| setup.py | ||
| stdeb.cfg | ||
Dangerzone
Take potentially dangerous PDFs, office documents, or images and convert them to a safe PDF.
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Dangerzone works like this: You give it a document that you don't know if you can trust (for example, an email attachment). Inside of a sandbox, Dangerzone converts the document to a PDF (if it isn't already one), and then converts the PDF into raw pixel data: a huge list of RGB color values for each page. Then, in a separate sandbox, Dangerzone takes this pixel data and converts it back into a PDF.
Read more about Dangerzone in the official site.
Getting started
- Download Dangerzone 0.4.1 for Mac (Apple Silicon CPU)
- Download Dangerzone 0.4.1 for Mac (Intel CPU)
- Download Dangerzone 0.4.1 for Windows
- See installing Dangerzone for Linux repositories
You can also install Dangerzone for Mac using Homebrew: brew install --cask dangerzone
Some features
- Sandboxes don't have network access, so if a malicious document can compromise one, it can't phone home
- Dangerzone can optionally OCR the safe PDFs it creates, so it will have a text layer again
- Dangerzone compresses the safe PDF to reduce file size
- After converting, Dangerzone lets you open the safe PDF in the PDF viewer of your choice, which allows you to open PDFs and office docs in Dangerzone by default so you never accidentally open a dangerous document
Dangerzone can convert these types of document into safe PDFs:
- PDF (
.pdf) - Microsoft Word (
.docx,.doc) - Microsoft Excel (
.xlsx,.xls) - Microsoft PowerPoint (
.pptx,.ppt) - ODF Text (
.odt) - ODF Spreadsheet (
.ods) - ODF Presentation (
.odp) - ODF Graphics (
.odg) - Jpeg (
.jpg,.jpeg) - GIF (
.gif) - PNG (
.png)
Dangerzone was inspired by Qubes trusted PDF, but it works in non-Qubes operating systems. It uses containers as sandboxes instead of virtual machines (using Docker for macOS, Windows, and Debian/Ubuntu, and podman for Fedora).
Set up a development environment by following these instructions.