Foxit Reader is a lightweight, fast PDF Reader.

MuPDF is a free and open-source software framework written in C that implements a PDF, XPS, and EPUB parsing and rendering engine. It is used primarily to ren…

GoodReader is an iOS application used to view documents in different formats, including .doc, .pdf, and .xls.

ReadCube is a desktop and browser-based program for managing, annotating, and accessing academic research articles.

ThinkFree Office is an office suite written in Java that runs on Windows, Linux, Mac and Android platforms.

ezPDF Reader is the best selling, best rated and most commented multimedia and frame-animation PDF viewer, annotator, form filler and paperless solution.

NessViewer is a software to edit, collect, present and stream media.

Adobe Acrobat Reader DC is the industry standard for viewing, printing, signing and commenting on PDF documents.

Documents To Go is a cross-platform office suite for Palm OS, Windows Mobile, Maemo, BlackBerry OS, Symbian, Android, and iOS.

Mylio is a photo organizer that slays your digital clutter.

Notability is a powerful, yet wonderfully simple note-taking and PDF annotation.

Xodo is a PDF reader and annotator.

Documents is an iPhone and iPad file manager.