Sumatra Pdf Dark Mode. If you run sumatrapdf with the command line option bg color 0xffff99 it will launch sumatrapdf with the new background color and save the background color as your default. Some of us spend many hours in front of pdf documents and it really makes a difference to our eyes to have a dark mode that makes text white and the background black.
This should open the sumatrapdf settings txt file in your text editor. As i understand it the whole page is rendered by the underlying mupdf engine and then displayed by sumatra so inverting colors inverts everything since no distinction is made between the text and image portions of a page. If you run sumatrapdf with the command line option bg color 0xffff99 it will launch sumatrapdf with the new background color and save the background color as your default.
This should open the sumatrapdf settings txt file in your text editor.
Change the following 3 lines under the heading fixedpageui. How to enable dark mode. Some of us spend many hours in front of pdf documents and it really makes a difference to our eyes to have a dark mode that makes text white and the background black. Alternatively the following command line option can be used.
