Nyx Nox - The Dark Mode PDF Viewer

The key feature of Nyx Nox is the display of PDF documents with inverted colors. This can make reading documents in darker environments more comfortable, particularly during extended screen use or at night.

Download Nyx Nox on the Mac App Store for free


Nyx Nox requires macOS 10.13 High Sierra or higher
Nyx Nox is localized in English and German

Nyx Nox is intended for users who regularly read PDF documents and prefer a simple, unobtrusive viewer.

The application opens PDF files quickly and displays them with inverted colors by default. This display mode can be helpful for people who are sensitive to bright screens or who prefer working in dark mode. The display can be switched back to the standard view at any time.

Nyx Nox is developed using native macOS technologies and integrates naturally with the system. The application is intentionally lightweight.

The feature set focuses on the core tasks of a PDF viewer:

Opening PDF documents via Finder, drag and drop, or the menu
Reading documents using inverted color display
Switching between standard and inverted display modes
Full-text search within PDF documents
Page navigation

Nyx Nox is intended exclusively for reading and viewing PDF files. Features for editing, annotating, or otherwise modifying documents are intentionally not included.

The application may be useful in particular for:

Reading PDFs for extended periods
Working with documentation or technical material
Use in dark working environments or at night
Users who find darker display modes more comfortable

Download Nyx Nox on the Mac App Store for free


Nyx Nox requires macOS 10.13 High Sierra or higher
Nyx Nox is localized in English and German