MuPDF is described as 'Highly versatile PDF and XPS solution offering customizable rendering and viewing with features like digital signatures, redactions, and annotations' and is a very popular PDF Reader in the office & productivity category. There are more than 100 alternatives to MuPDF for a variety of platforms, including Windows, Android, Mac, Linux and Web-based apps. The best MuPDF alternative is SumatraPDF, which is both free and Open Source. Other great apps like MuPDF are Okular, Foxit PDF Reader, Xournal++ and Evince.
Besides exceptionally fast launching and displaying speed, Gaaiho Reader is reliable in printing, filling forms annotating documents and adding bookmarks.
Taiwan
PDF X is a productive PDF reader & editor for Windows. It's powerful for users to view, print, edit, and annotate Adobe Acrobat PDFs.
Canada
Apryse, previously known as PDFTron, takes document solutions to the next level, making work better and life simpler.
Canada
Orion is a pdf, djvu, xps and cbz file viewer for Android devices, based on mupdf and DjVuLibre libraries.
Comix is an image viewer specifically designed to handle comic books. It reads ZIP, RAR and tar archives (also gzip or bzip2 compressed), as well as plain image files. It has a simple and user-friendly GUI using PyGTK.
Ashampoo PDF Free is a software for opening, reading, and creating PDF files. It includes a built-in printer driver for generating PDFs from any Windows application, a compact and fast PDF reader, and the ability to fill out interactive and static forms.
Germany
EU
SpeedyNote is a fast, open-source note-taking application designed for stylus users who need iPad-quality annotation on budget hardware. Built with native C++ and Qt, it delivers 360Hz stylus input on hardware as modest as an Intel Celeron N4000 at 1.
Xreader is a document viewer capable of displaying multiple and single page document formats like PDF and Postscript.
Supercharge your paper reading: follow references, skim outline, jump to figures, cite and save.
United States
EBookDroid is an open source (GPL'ed) document viewer for Android based on the VuDroid code base.
Russia
Offers viewing, searching, printing, and text copying for PDF files on Android. Streamlined for quick access and on-the-go use, optimized for work environments without Drive integration, lightweight, free, and requires minimal permissions.
United States
Ireland
