Exclusive!ģ.Sign PDF by drawing or typing your nameĥ.Verify signature and view signed versionġ.Save PDF as. Show or print comment summaryġ.Secure PDF with open password. Try it now and explore beyond reading!ġ.Scan and manage all PDF documents in your computerĢ.Add files which need frequent revisions to FavoritesĢ.Use laser pointer-styled cursor in full screen modeġ.Change annotation color, font, style and moreĢ.Insert text box, callout, typewriter and mark PDF with draw toolsĤ.Count the number of comments by their types. You can now annotate PDF with a complete set of tools, manage PDF files, connect to cloud services and even protect PDF with signature. GradientColors will change the background window of Sumatra PDF.The new generation of Gaaiho Reader 3 adopts a new UI design as well as a number of important features only previously available in paid versions. Background color changes, well the background color of the PDF document. TextColor changes the text color of the PDF document. Change the following 3 lines under the heading FixedPageUI: This should open the SumatraPDF-settings.txt file in your text editor. In Sumatra PDF, click on the Menu -> Settings -> Advanced Options It can be really jarring for the eyes and nerves. It’s as if you were relaxing in a room with the lights switched off and suddenly someone walked in and abruptly turned the lights on.Īs you are coding along you have to switch back and forth multiple times between your PDF reader and code editor. Immediately your eyes are shocked with bright luminescent white light. The default setting is black text on white background. This greatly reduces the strain on the eyes.īut let’s say you are also following along an e-book, maybe a PDF and you switch to Sumatra PDF. If you code for long periods of time, then it’s really great to have your code editor run in dark mode. It’s small in size, super-fast and doesn’t have any annoying cruft.

A dark mode for Sumatra PDF is really easy – you just need to tinker with 3 lines of code in the settings.

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