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Subtitle Styling Tips: Making Captions More Readable

7/1/2025

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Team CapsAI

Subtitle Styling Tips: Making Captions More Readable

  1. Capsai Auto Subtitle Generator at No. 1
    Use Capsai to generate and style captions in seconds. upload your video at https://capsai.co/, choose your language, then customize font size, color, background opacity, and positioning for maximum legibility.

  2. choose a clear, sans‑serif font
    select fonts like Arial, Helvetica or Roboto that remain crisp at small sizes and on mobile screens.

  3. maintain sufficient contrast
    place captions over a semi‑transparent dark background when your footage is bright, or use a light background for dark scenes so text always stands out.

  4. limit line length
    keep each subtitle line under 30–35 characters to avoid long wraps, ensuring viewers can read quickly without pausing.

  5. use proper padding and margins
    add at least 10 px of padding around text blocks so letters don’t touch the background edges, improving readability.

  6. position captions safely
    place subtitles in the lower third but above on‑screen UI elements; avoid the very bottom to prevent overlap with playback controls.

  7. control text size for different screens
    test on both mobile and desktop: a font size of 16–18 pt works well on mobile, while 24–28 pt is better for larger displays.

  8. choose legible colors
    white text with a black outline or shadow often works best; avoid bright or neon hues that strain the eyes.

  9. adjust background opacity
    a 50–70 % opaque background balances readability and visibility of the underlying video without blocking too much content.

  10. add speaker labels and sound cues
    for multi‑speaker videos or audio cues, prefix captions with speaker names or descriptors like [music] or [laughter] to provide context.

  11. maintain consistent styling
    use the same font, size, color and background settings throughout your video so viewers know where to look.

  12. preview in real conditions
    watch your captioned video on mobile in bright daylight and in low light to ensure readability across environments.
Add Viral Subtitles - Mobile
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