Sumatra PDF is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows.
Sumatra PDF is powerful, small, portable and starts up very fast.
Simplicity of the user interface has a high priority.
Home: https://www.sumatrapdfreader.org/free-pdf-reader.html
Latest prerelease: v. 3.2.11063 built on 2018-11-07
Download x32 bit
installer: https://kjkpub.s3.amazonaws.com/sumatrapdf/prerel/SumatraPDF-prerelease-11063-install.exe
portable: https://kjkpub.s3.amazonaws.com/sumatrapdf/prerel/SumatraPDF-prerelease-11063.exe
Download x64 bit
installer: https://kjkpub.s3.amazonaws.com/sumatrapdf/prerel/SumatraPDF-prerelease-11063-64-install.exe
portable: https://kjkpub.s3.amazonaws.com/sumatrapdf/prerel/SumatraPDF-prerelease-11063-64.exe
SumatraPDF pre-release builds are for testing. They might have bugs not present in official releases.