Download Sumatra PDF 3.1.1

An update for Sumatra PDF version 3.1 has been released. This open source program allows viewing of various document formats, including pdf, chm, and DjVu. In addition, it can handle epub and mobi ebooks, and cbz and cbr comic books. Compared to Adobe Reader, it is very light and therefore also suitable for older computers. Since version 3.1, a 64-bit version of the program is also available and documents are printed as images again, which should improve the quality of the printout. The following improvements have also been made in this update:

Changes in this release:

• (re)add support for old processors that don’t have SSE2
• support newer versions of unrar.dll
• allow keeping browser plugin if it’s already installed
• crash fixes