免费开源pdf阅读器SumatraPDF 3.6.1 正式版

介绍

Sumatra PDF是一款免费开源的轻量级PDF阅读器，体积小、速度快、绿色便捷、单执行文件，不写注册表项。SumatraPDF支持打开PDF、ePub、MOBI、XPS、DjVu、CHM、CBZ、CBR格式文件。它的优点在于简洁的界面，没有注释功能，没有导出TXT功能，功能极度精简，专注于PDF文件的浏览阅读。可以查看中文PDF，除了支持pgup/pgdn翻页外，还可以用p/n (previous,netx)翻页。

软件截图

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。

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。

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:
  • zooming with pinch touch screen gesture or with ctrl + scroll wheel now zooms around the mouse position and does continuous zoom levels. Used to zoom around top-left corner and progress fixed zoom levels shown in menu
• 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):
  • CmdCloseAllTabs : “Close All Tabs”
  • CmdCloseTabsToTheLeft : “Close Tabs To The Left”
  • CmdDeleteFile: “Delete File”
  • CmdToggleFrequentlyRead : “Toggle Frequently Read”
  • CmdToggleLinks : “Toggle Show Links”
  • CmdInvokeInverseSearch
  • CmdMoveTabRight (Ctrl + Shift + PageUp), CmdMoveTabLeft (Ctrl + Shift + PageDown) to move tabs left / right, like in Chrome
• add ability to provide arguments to some commands when creating bindings in Shortcuts:
  • CmdCreateAnnot* commands take a color argument, openedit to automatically open edit annotations window when creating an annotation, copytoclipboard to copy selection to clipboard and setcontent to set contents of annotation to selection
  • CmdScrollDown, CmdScrollUp : integer argument, how many lines to scroll
  • CmdGoToNextPage, CmdGoToPrevPage : integer argument, how many pages to advance
  • CmdNextTabSmart, CmdPrevTabSmart (Smart Tab Switch), shortcut: Ctrl + Tab, Ctrl + Shift + Tab
• 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