Okular Alternatives for Windows

Foxit Reader is a lightweight, fast PDF Reader.

Sumatra PDF is PDF reader and writer for Windows.

Calibre is an Ebook management software.

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

Evince is a document viewer for PDF, PostScript, DjVu, TIFF, XPS and DVI formats.

FBReader is a free ebook reader. Main ebook formats: ePub (including main features of ePub3), Kindle azw3 (mobipocket), fb2(.zip).

PDF.js. A general-purpose, web standards-based platform for parsing and rendering PDFs.

Nitro Software, Inc. develops commercial software used to create, edit, sign, and secure Portable Document Format (PDF) files and digital documents.

STDU Viewer is a compact viewer for many computer file formats.

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 render pages into bitmaps, but also provides support for other operations such as searching and listing the table of contents and hyperlinks.

WinDjView is a fast, compact and powerful DjVu viewing application for the Windows.

Chrome PDF Viewer Plug-in is a built-in PDF viewer in chrome.

PDF Studio is a multi-platform PDF editor.

EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers.

Universal Viewer is an advanced file viewer for wide range of formats.