Document Viewer Alternatives for Mac OS X

Foxit Reader is a robust and feature-rich PDF reader and editor that provides users with a comprehensive set of tools for viewing, annotating, signing, and creating PDF documents. Known for its blend of performance and functionality, it caters to both casual users and professionals handling complex PDF workflows.

Calibre is a powerful and versatile open-source e-book management software that streamlines the organization, conversion, and reading of your digital book collection across various formats and devices.

Adobe Acrobat Reader DC is the venerable and widely adopted standard for interacting with PDF documents. It provides robust tools for viewing, printing, signing, and commenting on PDF files across various devices and platforms.

Amazon Kindle offers a comprehensive ecosystem for reading digital books, providing dedicated e-readers and cross-platform apps. It allows users to purchase, download, and read a vast selection of ebooks, newspapers, and magazines, synced across various devices for seamless access.

FBReader is a versatile and free ebook reader application supporting multiple formats including ePub, Kindle azw3, and fb2. It offers a customizable reading experience across different platforms with features like library management, synchronization, and text-to-speech.

Firefox PDF Viewer (PDF.js) is an open-source, web standards-based PDF viewer embedded directly within the Firefox browser. It allows users to view PDF documents seamlessly without the need for external software or plugins, enhancing browser-based document handling and accessibility.

Preview is the native image and PDF viewer for macOS. It offers essential tools for viewing, annotating, and basic editing of these file types directly within the Apple ecosystem. Designed for efficiency and low resource use, Preview provides a seamless and integrated experience for handling common document and image formats on Mac computers.

Apple Books (formerly iBooks) is Apple's native e-book and audiobook application for iOS and macOS devices, providing a seamless reading and listening experience with robust library management and sync features.

Skim is a free and open-source PDF reader and note-taker for macOS. Tailored for scientific use, it offers advanced annotation tools, robust export options, and tight integration with LaTeX, making it an ideal companion for academic research and professional document management.

WinDjView is a high-performance, compact, and user-friendly DjVu document viewer for the Windows operating system. Designed for speed and efficiency, it allows users to quickly open and navigate DjVu files, offering a range of features for enhanced reading experience.

The Chrome PDF Viewer is a built-in, lightweight PDF reader integrated directly into the Google Chrome web browser. It provides essential functionalities for viewing, basic annotation, and form filling of PDF documents encountered while browsing online, offering a seamless and efficient experience without the need for external software installation.

EPUBReader is a lightweight and efficient browser extension that allows users to open and read EPUB e-books directly within their web browser. It provides a simple and intuitive reading experience without requiring external software.

NOOK is a comprehensive digital reading application developed by Barnes & Noble, providing access to a vast library of ebooks, magazines, and newspapers. It offers a user-friendly interface for reading on various devices and includes features like customization, annotations, and cross-device synchronization.