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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteOn a Kindle e-reader, open a book, tap the top of the screen, then select Aa to adjust the book’s font size. For brightness, swipe down from the Home screen to open Quick Actions, or open Settings. Compatible models also offer warmth and Dark Mode controls. Kindle apps use a separate Aa menu, and their options vary by platform.
Change the font size inside a Kindle book
- Open the book you want to read.
- Tap the top of the screen to display the reading toolbar.
- Tap Aa, the Page Display icon.
- In the Font tab, use the slider or plus and minus controls to change the size. You can also pinch in or out on the page while reading.
Amazon says reading display preferences apply across books on the Kindle, though available settings and choices vary by model. See Amazon’s instructions for enlarging Kindle e-reader text and its guide to text display settings.
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Change the Kindle’s interface text size
The size of menus and other device-interface text is a separate setting from the font size inside a book. Amazon lists this option for Kindle E-Reader 11th Generation and later, Kindle Scribe, and Kindle Colorsoft.
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- Open Settings.
- Select Screen and brightness, then Display & text size.
- Choose a size. On Kindle Scribe, drag or tap the slider.
If this option is missing, the model may not support it. Book text can still be adjusted from the reading toolbar where available.
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Adjust brightness and screen warmth
To find the light controls, use one of these routes:
- From the Home screen, swipe down to open Quick Actions.
- Open Settings.
- While reading, tap the top of the screen to show the toolbar.
Adjust brightness with the scale or the + and − buttons. On compatible devices, press and hold those buttons to maximize or turn off the front light. Some models also have a Brightness and warmth section under Screen and brightness, where you can adjust both controls. Warmth is not available on every Kindle. For model-dependent details, consult Amazon’s Kindle screen-light instructions.
Rank #2
- Light and compact - With adjustable brightness, high contrast ratio, and fast page turns.
- Effortless reading in any light - Read comfortably with a 6“ glare-free display, adjustable front light—now 25% brighter at max setting—and dark mode.
- Escape into your books - Tune out messages, emails, and social media with a distraction-free reading experience.
- Read for a while - Get up to 6 weeks of battery life on a single charge.
- Take your library with you - 16 GB storage holds thousands of books.
Change color appearance or turn on Dark Mode
On a compatible e-reader, open Settings > Screen and brightness and look for Appearance or Color Style to choose a mode. Alternatively, swipe down to Quick Actions and tap Dark Mode when that option is available. Amazon describes e-reader Dark Mode as inverting text, images, and page color on supported black-and-white devices, including Kindle, Kindle Paperwhite, and Kindle Scribe. Menu labels and availability vary by model. See Amazon’s Dark Mode guidance.
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If a PDF becomes difficult to read or looks wrong after enabling Dark Mode or Page Color, turn the feature off to restore the PDF’s original format.
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- Our fastest Kindle Paperwhite ever – The next-generation 7“ Paperwhite display has a higher contrast ratio and 25% faster page turns.
- Ready for travel – The ultra-thin design has a larger glare-free screen so pages stay sharp no matter where you are.
- Escape into your books – Your Kindle doesn’t have social media, notifications, or other distracting apps.
- Battery life for your longest novel – A single charge via USB-C lasts up to 12 weeks.
- Read in any light – Adjust the display from white to amber to read in bright sunlight or in the dark.
Adjust reading settings in the Kindle app
The Android and iOS Kindle apps have their own reading controls; do not assume their menus match an e-reader’s.
- Open a book and tap the top center of the screen.
- Tap Aa to open reading settings.
- Use the Font tab for text size and screen brightness, or Layout for page colors.
Amazon lists white, sepia, light green, and black page colors in the app. On Android and iOS, the app follows the device’s Dark Mode setting. Other options include font choices, spacing, themes, and margins. Kindle for web, PC, and macOS have different settings, so check the instructions for the platform you use. See Amazon’s accessible reading options for Kindle apps.
Quick Recap
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- Our fastest Kindle Paperwhite ever – The next-generation 7“ Paperwhite display has a higher contrast ratio and 25% faster page turns.
- Ready for travel – The ultra-thin design has a larger glare-free screen so pages stay sharp no matter where you are.
- Escape into your books – Your Kindle doesn’t have social media, notifications, or other distracting apps.
- Battery life for your longest novel – A single charge via USB-C lasts up to 12 weeks.
- Read in any light – Adjust the display from white to amber to read in bright sunlight or in the dark.
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- Our fastest Kindle Paperwhite ever – The next-generation 7“ Paperwhite display has a higher contrast ratio and 25% faster page turns.
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- Ready for travel – The ultra-thin design has a larger glare-free screen so pages stay sharp no matter where you are.
- Escape into your books – Your Kindle doesn’t have social media, notifications, or other distracting apps.
- Adapts to your surroundings – The auto-adjusting front light lets you read in the brightest sunlight or late into the night.
Which setting should you change?
- Words on the page are too small: Change the book’s font in Aa > Font.
- Menus and device text are too small: Look for Display & text size in Settings on supported newer models.
- The screen is too bright or dim: Adjust brightness in Quick Actions, Settings, or the reading toolbar.
- You want a warmer screen: Look for the warmth control on a compatible e-reader.
- You want a different page appearance: Use Dark Mode on a compatible e-reader or page-color options in the Kindle app; these are distinct controls.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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