Top Alternatives to STDU Viewer

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.

Sumatra PDF is a free and lightweight PDF reader for Windows, renowned for its speed and minimalist interface. Beyond PDF, it supports a variety of other formats including EPUB, MOBI, CBR, CBZ, XPS, and DjVu, making it a versatile e-reader.

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.

Evince is a lightweight and versatile document viewer designed for various formats including PDF, PostScript, DjVu, TIFF, XPS, and DVI. It provides a clean and intuitive interface for easily accessing and navigating your documents.

PDF-XChange Viewer is a versatile and lightweight PDF reader and editor. It offers a wide array of features for viewing, annotating, and manipulating PDF documents, including OCR capabilities and form filling, all within a user-friendly interface.

Okular is a versatile document viewer from the KDE community, supporting a wide array of file formats including PDF, EPUB, DjVu, and TIFF. It offers intuitive navigation, robust annotation tools, and features like text selection and saving, making it a powerful tool for handling diverse document types.

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.

CDisplay Ex is a feature-rich and highly optimized comic book reader for Windows. It excels in handling various comic book and image formats with excellent performance, providing a smooth reading experience even on less powerful hardware. Offering extensive customization and a simple interface.

ComicRack is a comprehensive and feature-rich comic book reader and management software designed for both casual readers and serious collectors. It supports a wide range of comic file formats and provides advanced tools for organizing, viewing, and enhancing your digital comic library.

Comix is a lightweight and efficient image viewer designed specifically for reading comic books and manga. It supports popular archive formats like ZIP, RAR, and tar, providing a seamless experience for digital comic enthusiasts on Linux systems.

MuPDF is a lightweight, portable document rendering engine and viewer for PDF, XPS, and EPUB formats. Known for its speed and accurate rendering, it's ideal for integrating document display into various applications or for users seeking a minimalist, high-performance viewer.

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.

PDF Studio is a powerful, all-in-one PDF editor for Windows, macOS, and Linux. It provides comprehensive tools for viewing, creating, editing, securing, and reviewing PDF documents, serving professionals and individuals alike with robust features for managing their digital documents efficiently.

HoneyView is a fast and lightweight image viewer designed for viewing various image formats, including popular ones like JPG, PNG, and GIF, as well as comic book archives (CBR, CBZ) and the newer BPG format. It offers a clean interface and essential viewing tools.

qpdfview is a lightweight, tabbed document viewer based on Qt. It supports PDF, DjVu, PostScript, and other document formats, offering features like annotation, form filling, and a clean, customizable interface for efficient document management.

MComix is a robust and highly customizable image viewer, specifically optimized for reading comic books and manga. It offers exceptional performance with large files while maintaining a user-friendly interface. Its feature set extends beyond basic image viewing, providing tools for organization and enhanced reading.

Zathura is a highly customizable and efficient document viewer based on the Poppler rendering engine. It is designed with a minimal interface and focuses on keyboard-driven navigation, making it ideal for users who prefer a streamlined workflow and powerful keybindings.

Perfect Viewer is a highly optimized and feature-rich application designed for viewing images, comics, and ebooks on Android devices. With its fast performance, extensive customization options, and support for various file formats, it provides an exceptional reading and viewing experience for digital media.

GonVisor is a versatile and lightweight viewer for various digital content formats including comics, magazines, books, and image sequences. It supports popular formats like CBR, CBZ, and PDF (for image extraction), offering a portable and configurable reading experience on Windows and under WINE.

Xodo is a comprehensive, cross-platform PDF solution offering a wide array of tools for viewing, annotating, editing, signing, and creating PDF documents. With robust collaboration features and seamless cloud integration, it caters to both individual and professional use.

Universal Viewer is a portable file viewer capable of displaying a wide array of file formats, including documents, images, media, and raw files, without requiring the associated native applications.

ePDFView is a free, lightweight PDF viewer designed for speed and simplicity, built upon the Poppler rendering engine and GTK+ toolkit. Ideal for users prioritizing performance and minimal resource consumption on Linux systems.

Kami is a robust online PDF and document viewer and editor, offering a comprehensive suite of tools for annotation, form filling, and collaboration. Accessible through a web browser or as a Chrome Extension, it streamlines digital document workflows for users of all levels.

Document Viewer is a highly customizable and lightweight document viewer designed for Android devices. It supports a wide range of formats including PDF, DjVu, XPS, CBZ, CBR, and ePub, offering features like highlighting, annotation, and optimal performance.