Dangerzone

Dangerzone is a free, open-source document security application developed to make potentially malicious files safer to open. It converts untrusted PDFs, office documents, and images into sanitized PDF files through an isolated processing environment. The application first renders documents inside a sandbox to reduce exposure to malicious embedded content. It then transforms each page into raw pixel data and reconstructs a new PDF outside the sandbox. This process removes active elements such as embedded scripts and other potentially dangerous document structures. Dangerzone is especially useful for journalists, researchers, and professionals handling attachments from unknown sources. Available for Windows, macOS, and Linux, it provides a straightforward method for reducing document-based security risks.