sumatra-forward.el allows to do a forward-search from a place in a tex file to the corresponding place in its compiled pdf file viewed by SumatraPDF. The command to do the job is M-x sumatra-jump-to-line. After invoking this command, the corresponding place in pdf file takes the red color for few millisecond. Is it possible to increase this really brief time?

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    I doubt that's a thing that has much to do with Emacs and is most probably configurable or hard-coded in SumatraPDF.
    – wasamasa
    Commented Dec 17, 2014 at 13:35
  • Although the question ends up being about sumatra and not Emacs, leaving open because the issue stems from sumatra-forward.el which is part of Emacs. Commented Dec 17, 2014 at 14:50

1 Answer 1


This question isn't actually about Emacs—hence my close vote.

You need to configure SumatraPDF accordingly. On a cursory look at the documentation I didn't find any option to increase the highlighting time, but you can make it permanent until the next mouse click by changing the HighlightPermament setting in the ForwardSearch group to true.

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