When comparing Adobe Digital Editions 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 Adobe Digital Editions is ranked 8th. 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 Well-designed library management
All books are automatically divided in categories such as "not read", "borrowed", "purchased", "recently read", and "recently added" and additional categories can be added manually. They can be sorted by various criteria including "title", "author", "publisher", "date of addition", and "number of pages". Great for managing large quantities of books.
Pro Can be used with a variety of screen readers
ADE supports JAWS, Window-eyes, NVDA and Voiceover.
Pro Built-in annotation tools
You can highlight and leave notes in the app.
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 Full of bugs. No longer supported
Con No support for Linux
Doesn't have a Linux version.
Con Can't edit metadata
Lacks a built-in metadata editor.
Con Windows only
No Linux or OSX versions available.