SumatraPDF是一款轻量级的PDF阅读器，具有丰富的功能和高性能，它可以非常快速地打开PDF文档，即使是大型文档也只需几秒就能打开。
软件功能
支持浏览PDF文档：SumatraPDF可以快速加载和显示PDF文档，用户可以方便地浏览文档内容。
支持打印PDF文档：SumatraPDF支持直接打印PDF文档，用户可以选择打印范围和打印设置。
支持搜索文档内容：用户可以通过关键字搜索文档内容，快速定位到所需信息。
支持查看书签和目录：SumatraPDF可以显示文档的书签和目录，方便用户快速导航和定位。
支持全屏模式和阅读模式：用户可以选择全屏模式和阅读模式，提升阅读体验。
软件特点
界面简洁轻量：SumatraPDF采用简洁的界面设计，操作简单直观，不占用过多系统资源。
快速加载速度：SumatraPDF加载PDF文档的速度很快，用户可以迅速访问文档内容。
多平台兼容性：SumatraPDF支持Windows操作系统，可以在各种Windows设备上使用。
开源免费：SumatraPDF是免费的开源软件，用户可以免费下载、使用和分享。
支持多种文件格式：SumatraPDF不仅支持PDF文件，还支持其他常见的电子书格式，如ePub、MOBI、CBR等。
更新日志
3.6 (2026-03-17)
add DisableAntiAlias advanced setting and CmdToggleAntiAlias command
add CmdShowAnnotations, CmdHideAnnotations, CmdToggleShowAnnotations commands for temporarily hiding / showing annotations
add CmdToggleInverseSearch to temporarily disable mouse click invoking tex inverse search
add bgcolor, opacity, textsize, borderWidth arguments to CmdCreateAnnot* commands
add Annotations.FreeTextBackgroundColor and Annotations.FreeTextOpacity advanced settings
sort thumbnails on home page by most recently used date. Set advanced setting HomePageSortByFrequentlyRead = true to revert to pre-3.6 behavior of sorting by frequency of use.
support brotli compression in PDF files
in Command Palette, if you start search with : we show everything (like in 3.5)
in Command Palette, when viewing opened files history (#), you can press Delete to remove the entry from history
improved zooming:
include manual (F1 to launch browser with documentation)
add LazyLoading advanced setting, defaults to true. When restoring a session lazy loading delays loading a file until its tab is selected. Makes SumatraPDF startup faster.
new commands in command palette (Ctrl + K):
add ability to provide arguments to some commands when creating bindings in Shortcuts:
added UIFontSize advanced setting
removed TreeFontWeightOffset advanced setting
increase number of thumbnails on home page from 10 => 30
add ShowLinks advanced setting and “Toggle Show Links” (CmdToggleLinks) for command palette
default ReuseInstance setting to true
added Key arg to ExternalViewers advanced setting (keyboard shortcut)
added Key arg to SelectionHandlers advanced setting (keyboard shortcut)
improved scrolling with mouse wheel and touch gestures
theming improvements
go back to opening settings file with default .txt editor (notepad most likely)
don’t exit fullscreen on double-click. must double-click in upper-right corner
when opening via double-click, if Ctrl is pressed will always open in new tab (vs. activating existing tab)
register for handling .webp files
bug fix: Del should not delete an annotation if editing content
bug fix: re-enable tree view full row select
change: CmdCreateAnnotHighlight etc. no longer copies selection to clipboard by default. To get that behavior back, you can use copytoclipboard argument instead.
change: Ctrl + Tab is now CmdNextTabSmart, was CmdNextTab. Ctrl + Shift + Tab is now CmdPrevTabSmart, was CmdPrevTab. You can re-bind it if you prefer old behavior
CmdCommandPalette takes optional mode argument: @ for tab selection, # for selecting from file history and > for commands.
command palette no longer shows combined tabs/file history/commands. CmdCommandPalette only shows commands. Because of that removed CmdCommandPaletteNoFiles because now `CmdCommandPalette behaves like it
removed CmdCommandPaletteOnlyTabs, replaced by CmdCommandPaletteNoFiles @
Ctrl + Shift + K no longer active, use Ctrl + K. You can restore this shortcut by binding it to CmdCommandPalette > command.
add Name field for shortcuts. If given, the command will show up in Command Palette (Ctrl + K)
closing a current tab now behaves like in Chrome: selects next tab (to the right). We used to select previously active tab, but that’s unpredictable and we prefer to align SumatraPDF behavior with other popular apps.
swapped key bindings: i is now CmdTogglePageInfo, I is CmdInvertColors. Several people were confused by accidentally typing i to invert colors, is less likely to type it accidentally
allow creating custom themes in advanced settings in Themes section. See docs.
improve scrolling with middle click drag #4529
make built-in keyboard shortcuts work on non-us keyboards (cyrillic , hebrew etc.)
add CmdDuplicateInNewTab (Open Current Document In New Tab) command
下载地址
SumatraPDF(轻量级PDF阅读器) v3.6 多语便携版
夸克云：https://pan.quark.cn/s/faa8c5e527f3
123 盘：https://www.123865.com/s/tPd6jv-6MT9H
百度云：https://pan.baidu.com/s/1M_2ofuH22oCLlkUlyXKKjg?pwd=g273
