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I'm reading a lot of pdf's in Preview's full screen mode. Usually this means I'm looking at a fully white screen with black characters. I'm getting mad after an hour of reading..

Is there a way of adjusting the colours/contrast in Preview temporarily? For example in TexShop the white background is automatically changed to a grey-value. For me it's probably fine if I'd able to change the white background to grey, but maybe its possible to even change it to another color like the nightmode on iOs?

Is this possible with Preview out-of-the-box? Can it be changed temporarily/only on viewing? Thank you.

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3 Answers 3

Reset to default
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I suggest to turn on the night shift function and to push it to a warmer color map: System Preferences > Displays > Night Shift. Night shift

This will protect your retina and your brain.

It might be worth trying the Invert colors mode: System Preferences > Accessibility > Display > Invert colors. Invert colors

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  • Using light theme in General settings can improve the inverted experience further
    – anki
    Nov 3, 2019 at 9:29
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    Thank you. I don't have this function in my production environnment (High Sierra).
    – dan
    Nov 3, 2019 at 10:01
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Foxit Reader is an alternative PDF reader, which provides many advantages over Preview, including a Preference setting for the background colour.

(Not affiliated: just a happy user.)

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Preview doesn't have that option but you can use F.Lux to make screen itself warm (yellowish) and thus softer on eyes.

Change background colour for PDF when Viewing

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