Download Sumatra PDF 2.3.1

Some time ago, version 2.3 of Sumatra PDF was released, an open source program that 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 suitable for older computers. However, in version 2.3, support for processors without sse2 has been dropped and that resulted in an unexpected amount of complaints from the developer. That is why version 2.3.1 has now been released and the only change is that sse2 is no longer used.

Changes in this release:

• No longer using SSE2 to support old computers