[[!meta title="Converting dangerous documents to safe PDFs using Dangerzone"]]

When you receive untrusted documents, for example, email attachments, *[Dangerzone](https://dangerzone.rocks/)* allows you to convert them into safe PDFs before opening.

*Dangerzone* is particularly useful for journalists who might receive dangerous
documents from anonymous sources or download them from the Internet.

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You can install *Dangerzone* in Tails using the [[Additional Software|additional_software]] feature.

We are not including *Dangerzone* in Tails only because it would be too big (over 1 GB), but we highly recommend it.

Learn more about [how *Dangerzone* works](https://dangerzone.rocks/about/).

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Supported formats

*Dangerzone* works on many file formats, including:

Differences between *Dangerzone* and *Metadata Cleaner*

Tails also includes [[*Metadata Cleaner*|doc/sensitive_documents/metadata]] to clean files, but the use cases for *Dangerzone* and *Metadata Cleaner* are very different.

We recommend that you use:

*Metadata Cleaner* to [[remove metadata from your files|doc/sensitive_documents/metadata]] before you publish or share them.

To install *Dangerzone*, you need at least:

When starting Tails, [[set up an administration password|doc/first_steps/welcome_screen/administration_password]].

Choose **Applications&nbsp;▸ Persistent Storage** to open the Persistent Storage settings.

Make sure that the **Additional Software** feature is enabled.

Close the Persistent Storage settings.