When comparing EPUBReader vs Sumatra PDF, the Slant community recommends Sumatra PDF for most people. In the question“What are the best desktop readers?” Sumatra PDF is ranked 4th while EPUBReader is ranked 10th. The most important reason people chose Sumatra PDF is:
Including PDF, XPS, DjVu, CHM, EPUB, Mobi, FictionBook, PalmDoc, and comic books.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Does not require you to download the file
Instead of having to download and open the file in a separate program, EPUBReader will allow you to read online.
Pro Reads many file types
Including PDF, XPS, DjVu, CHM, EPUB, Mobi, FictionBook, PalmDoc, and comic books.
Pro Book updates on the fly
If Book font, style is changed, Sumatra will take the update instantly, No need to close first and import again! Huge time saver for self publishing.
Pro Portable
The application consists of a single file that can be run without installation. You can put it on an external device, such as an usb thumb stick and run it on any Windows machine from the thumb stick.
Pro Multilingual
It's available in 69 languages.
Pro Free and open source
Sumatra is available for free, licensed under GPL with source code available on GitHub.
Cons
Con Windows only
No Linux or OSX versions available.