Foxit Reader
Free Personal
Foxit Reader is a lightweight, fast PDF Reader.
calibre
Open Source
Calibre is an Ebook management software.
Evince
Open Source
Evince is a document viewer for PDF, PostScript, DjVu, TIFF, XPS and DVI formats.
FBReader
Open Source
FBReader is a free ebook reader. Main ebook formats: ePub (including main features of ePub3), Kindle azw3 (mobipocket), fb2(.zip).
Nitro Reader
Free Personal
Nitro Software, Inc. develops commercial software used to create, edit, sign, and secure Portable Document Format (PDF) files and digital documents.
STDU Viewer
Free Personal
STDU Viewer is a compact viewer for many computer file formats.
MuPDF
Open Source
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…
Chrome PDF Viewer Plug-in is a built-in PDF viewer in chrome.
qpdfview
Open Source
qpdfview is a tabbed document viewer.
zathura
Open Source
zathura is a PDF viewer.
Universal Viewer
Freemium
Universal Viewer is an advanced file viewer for wide range of formats.
ePDFView
Open Source
ePDFView is a free standalone lightweight PDF document viewer using Poppler and GTK+ libraries.
Document Viewer
Open Source
Document Viewer is a highly customizable document viewer for Android.
Sumatra PDF
Open Source
Sumatra PDF is PDF reader and writer for Windows.
Adobe Acrobat Reader DC
Freemium
Adobe Acrobat Reader DC is the industry standard for viewing, printing, signing and commenting on PDF documents.
PDF-XChange Viewer
Freemium
PDF-XChange Viewer is a free PDF editor/reader.
Firefox PDF Viewer (PDF.js)
Open Source
PDF.js. A general-purpose, web standards-based platform for parsing and rendering PDFs.
Preview
Free
Preview is the image viewer and PDF viewer of the macOS operating system.
Skim
Open Source
Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF.
WinDjView
Open Source
WinDjView is a fast, compact and powerful DjVu viewing application for the Windows.
PDF Studio
Commercial
PDF Studio is a multi-platform PDF editor.
EPUBReader
Free
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.
Xodo
Free
Xodo is a PDF reader and annotator.
ezPDF Reader
Commercial
ezPDF Reader is the best selling, best rated and most commented multimedia and frame-animation PDF viewer, annotator, form filler and paperless solution.
Kami
Commercial
Kami is an online PDF viewer.
Compare Okular with alternatives
Compare Foxit Reader and Okular and decide which is most suitable for you.
Compare Adobe Acrobat Reader DC and Okular and decide which is most suitable for you.
Compare PDF-XChange Viewer and Okular and decide which is most suitable for you.
Compare Firefox PDF Viewer (PDF.js) and Okular and decide which is most suitable for you.
Compare Nitro Reader and Okular and decide which is most suitable for you.
Compare Chrome PDF Viewer Plug-in and Okular and decide which is most suitable for you.
Compare Universal Viewer and Okular and decide which is most suitable for you.
Compare ezPDF Reader and Okular and decide which is most suitable for you.
Compare Document Viewer and Okular and decide which is most suitable for you.