Captions on vertical video are not an accessibility add-on. They are the main way many viewers follow a clip. Sound off is the default in most feeds, so the words on screen carry the story.
If the captions are slow, tiny, or hidden behind a button, the clip loses most of its audience before the first sentence ends. Treat them as a design element, not an export setting.
I keep captions large and high contrast, inside the safe zone. I break them into short chunks that appear as the speaker talks, so the eye has something to do even when the footage is static.
Auto captions are a starting point. I edit them for punctuation and names, then restyle them. Raw machine output has awkward line breaks and wrong words that distract from the point.
When a caption lands on the word being spoken, the clip feels tight. When it lags, the viewer senses the mismatch even if they cannot name it. I nudge each chunk until the appearance matches the audio.
I also let key captions sit longer than the rest. The line that carries the idea gets an extra beat on screen. Everything else can move faster.
A caption is a second performance of the script. If it is hard to read, the first performance never mattered.
Captions are a visual signature. A consistent font and color teach viewers that a clip is yours before they read a word. I keep a caption preset for every channel so the style stays stable across a hundred uploads.
Designing vertical video for a phone screen starts with the frame, not the edit. Plan the shots and the text long before you sit down to cut anything.
Vertical video framing for a tall screen is mostly about what you leave out. Here is how to choose a subject, a distance, and a background that holds up.
Text on a vertical video has to sit where a thumb and a caption bar never cover it. These placement rules keep the words readable on a small screen.
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