Sumatra PDF 3.2

[harlan4096]

Changes in 3.4.5:

• fix crashes
  
• fix deadlock in Fit Content mode and Bookmark links
  

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[harlan4096]

Sumatra PDF 3.6.0

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
  

Version history