Openlib is an open source app to download and read books from shadow library (Anna’s Archive). The App Has Built In Reader to Read Books.



Sav PDF Viewer is described as 'The simplest PDF viewer. Safe (doesn't require permissions), lightweight (just 6,9MB) and modern' and is a PDF Reader in the office & productivity category. There are more than 50 alternatives to Sav PDF Viewer for a variety of platforms, including Windows, Mac, Android, Linux and Web-based apps. The best Sav PDF Viewer alternative is SumatraPDF, which is both free and Open Source. Other great apps like Sav PDF Viewer are Okular, Foxit PDF Reader, Xournal++ and Evince.
Openlib is an open source app to download and read books from shadow library (Anna’s Archive). The App Has Built In Reader to Read Books.



PDF Viewer (aka pdf.js) is a new revolutionary extension using web standard technologies that allows you to display within Mozilla Firefox almost all PDF files found on the web without a plugin.





Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.




Native macOS app for viewing, annotating, and editing images and PDFs, featuring tools for cropping, rotating, resizing images, rearranging pages, full-screen viewing, markup, document merging, batch conversion, and export in multiple formats.




A document viewer for the GNOME desktop. You can view, search or annotate documents in many different formats.


Xodo is the ultimate cross-platform PDF viewer and annotator. Powerful, fast, and optimized for all phones and tablets, Xodo makes it easy to access, edit, share, sync, manage, sign, and more.




Xodo is the most popular commercial alternative to Sav PDF Viewer.
Create, Convert, Review and Edit PDF Documents on Windows, macOS, and Linux.




Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid .


Flow is an online EPUB reader that offers its services at no cost and is compatible across a range of platforms including Web, Windows, Linux, macOS, Android, and iOS. It provides the convenience of reading multiple books simultaneously and enables seamless reading across...

Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions.





