SumatraPDF Alternatives for Windows
There are many alternatives to SumatraPDF for Windows if you are looking to replace it. The most popular Windows alternative is 
PDF Reader, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to SumatraPDF and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to SumatraPDF are 
Foxit Reader (Free Personal), 
Okular (Free, Open Source), 
Adobe Acrobat Reader DC (Freemium) and 
FBReader (Freemium).
- PDF Reader is the one app you can rely on when you need a portable solution to work with PDFs.
PDF Reader is easy to use and has nothing extra
Simple interface - this is the main advantage of PDF Reader! - Free PDF software that enables you to create, annotate, share, and collaborate on PDF documents.
- Okular is a universal document viewer developed by KDE. Okular works on multiple platforms, including but not limited to Linux, Windows, macOS, *BSD, etc.
- Adobe Acrobat Reader DC is a powerful software for viewing, printing, and annotating PDFs.
- FBReader is an e-book reader for various platforms. Features: Supported e-book formats are: ePub, an international e-publishing standard.
- The smallest, fastest, most feature-rich PDF editor/viewer available * Full Direct Content Editing (text based PDFs, not scanned/image based PDFs) * Includes OCR feature
- PDF Viewer (aka pdf.js) is a new revolutionary extension using web standard technologies that allows you to display within...
- MuPDF is a highly versatile, customizable PDF and XPS interpreter solution that can be used across a wide range of applications as a PDF renderer, viewer, or toolkit. .
- Cool Reader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices.
- Nitro Reader offers features and functionality far beyond typical PDF readers, and makes working with PDF easier than ever before.