When comparing Kindle for PC vs Sumatra PDF, the Slant community recommends Sumatra PDF for most people. In the question“What are the best PDF viewers for Windows?” Sumatra PDF is ranked 2nd while Kindle for PC is ranked 15th. The most important reason people chose Sumatra PDF is:
Sumatra is available for free, licensed under GPL with source code available on [GitHub](https://github.com/sumatrapdfreader/sumatrapdf).
Ranked in these QuestionsQuestion Ranking
Pro Built in store
The Kindle app for Android features an in built eBook store within the app that sells eBooks, magazines, newspapers, comic books and graphic novels. Amazon also offers one of it not the biggest eBook store available today.
Pro Send to Kindle
The Kindle platform allows users to upload their own eBooks and documents to be read on any of the Kindle apps or devices.
Pro App supports a multitude of operating systems
Kindle for PC is one of the many apps available from Amazon for the Kindle platform. This allows users to keep their library with them no matter what device they are using.
Pro Free and open source
Sumatra is available for free, licensed under GPL with source code available on GitHub.
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 Starts quickly
Pro Extensive keyboard shortcuts
Pro Does not have heavy editor features
Annotations and other heavy features are just not needed in reader.
Pro Low resource usage
It's available in 69 languages.
Pro Elegant interface
Con Send to Kindle now has to be paid for
Send to Kindle only works if a user is already paying for a cloud subscription plan.
Con Not good for students research
The eBooks available from Amazon do not offer normal page numbers, printing or even copy paste, which makes using any of the ebooks for reports or papers pretty much impossible.
Con Lacking in features
Sumatra aims for simplicity at the expense of functionality. For example, there's no way to annotate PDFs or edit them.
Con Windows only
Con Fonts are not smooth enough
Not as smooth as e.g. Adobe Reader. No anti-aliasing
Con Cannot crop empty fields
Just got used to this killing feature on Goodreader on Mac.