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Yet, PDFs' default black text on white backgrounds can cause eye strain during late-night sessions, whether you're a student cramming from digital textbooks or a night owl powering through work. How to Stay Productive as a Morning Person or Night Owl shares strategies to optimize your routine.
To fix this in Adobe Reader, your go-to PDF viewer, follow these proven steps:
Open Adobe Reader and navigate to Edit > Preferences. Select the Accessibility category, then expand Document Color Options. Check Replace Document Colors, enable Use high-contrast colors, and choose White Text on Black from the dropdown—ideal for reducing glare.
Click OK to apply. Your PDFs will now display with a dark theme, making text much easier on the eyes. Note: This inverts only text colors, so images and graphics may appear altered.
To revert, reopen Edit > Preferences and uncheck Replace Document Colors.
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