Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.
Cost / License
- Free
- Open Source (GPL-3.0)
Application type
Platforms
- Mac
- Windows
- Linux
United States




Apps similar to PDF X include SumatraPDF, which is free and open source. Other options are Okular, Foxit PDF Reader, PDFgear and PDF-XChange Editor. There's no shortage of PDF Readers like PDF X, with more than 50 alternatives for Windows, Mac, Linux, Android and the web.
Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.




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