SumatraPDF new features: March 27, 2026

New in the SumatraPDF pre-release builds: Take Screenshot New Take Screenshot command (CmdScreenshot) in the Ctrl + k command palette captures the desktop and every visible window. An overlay shows thumbnails of the captures, labeled with process name and size. Pick one with the mouse or arrow keys and press Enter to save it as a PNG in the Screenshots folder of the SumatraPDF data directory. Default zoom for images The new ImageUI.DefaultZoom advanced setting sets the default zoom level for image files (default shrink to fit). Switch tabs on/off without restart, menu bar with tabs Toggle Use Tabs (CmdToggleUseTabs) switches between tabbed and non-tabbed mode right away, with no restart. The menu bar can now be shown when tabs are on; before, it was only available without tabs. More: changes from March 27, 2026 and the full changelog.