Vizard Agent

How to stop your captions breaking words across two lines

Last updated 2026-10-10 · 2 min read

Tell Vizard Agent that no word may be split across two lines. Rather than asking the caption renderer to wrap more carefully, it builds the subtitle files with the line breaks already decided at word boundaries, then checks every line in the finished clips rather than spot-checking a few.

What do you type into Vizard Agent?

State the rule as a rule. "Make the captions neater" is a preference that will be interpreted, while "break lines at word boundaries, never inside a word" is a condition Vizard Agent can check every line against afterwards. Most people ask for two lines and assume whole words come with it, so say both.

Prompt

Change the subtitle style to a classic one, on two lines. Every word must stay whole. Do not break a word between lines or in the middle of a word. Break the text at word or phrase boundaries. A simple classic font, no extra effects.

What does Vizard Agent actually do?

A caption renderer wraps text to fit a width, and when a word doesn't fit it breaks the word. Asking for a different style doesn't change that. Getting there took three attempts, and the third changed the approach rather than the settings: decide the breaks before the renderer ever sees the text. In the session behind this article it:

When does this not work well?

Sometimes no break position helps, because a word is simply longer than the line. In languages that build long compound words, or with very large type on a narrow vertical frame, the word won't fit however Vizard Agent breaks around it. Then the real choice is between a smaller size and a wider layout.

Common questions

What if a word is too long? Vizard Agent will reduce the size or tell you the layout is too narrow.

Can I change the size afterwards? Yes, and Vizard Agent re-verifies the wrapping when you do.

Why not just use a smaller font? It hides the fault at one size, and the fault comes straight back when someone makes the captions bigger. Vizard Agent decides the breaks instead.