3.1 (2015-10-24)
Changes in this release:
64bit builds
all documents are restored at startup if a window with multiple tabs is closed (or if closing happened through File -> Exit); this can be disabled through the RestoreSession advanced setting
printing happens (again) always as image which leads to more reliable results at the cost of requiring more printer memory; the "Print as Image" advanced printing option has been removed
scrolling with touchpad (e.g. on Surface Pro) now works
many crash and other bug fixes
抄自：
http://www.sumatrapdfreader.org/news.html传送门：
http://www.sumatrapdfreader.org/downloadafter.html这是一个专为移动设备优化的页面（即为了让你能够在 Google 搜索结果里秒开这个页面），如果你希望参与 V2EX 社区的讨论，你可以继续到 V2EX 上打开本讨论主题的完整版本。
https://www.v2ex.com/t/232529
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