SumatraPDF new features: June 13, 2026

New in the SumatraPDF pre-release builds:

Remove Deleted Files From History

Remove Deleted Files From History (CmdRemoveDeletedFilesFromHistory, command palette) removes files that no longer exist on disk from the list of recently opened files.

Reuse instance respects virtual desktops

With ReuseInstance, opening a file uses a SumatraPDF window on the current virtual desktop, or opens a new window there, instead of switching to another desktop (#5630).

Literal % in external viewer command lines

In ExternalViewers command lines, %% stands for a literal %, e.g. %%d is passed to the program as %d (#5583).
More: changes from June 13, 2026 and the full changelog.
#SumatraPDF #release notes
Oct 16 2026

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