Use no more than two lines on screen at once.
Professional styling helps differentiate characters and clarifies off-screen audio: COMPLETE GUIDE to subtitling: NETFLIX, BBC and more! Character subtitles English
Limit each line to a maximum of 42 characters , including spaces. Use no more than two lines on screen at once
Effective character subtitles (often referred to as dialogue subtitles) must balance readability with narrative flow. This guide outlines the technical standards and creative styling used by professionals. 1. Technical Standards for Readability Character subtitles English
Aim for a maximum of 20–21 characters per second (CPS) . If dialogue is too fast, compress the text while preserving meaning.
Keep each subtitle on screen for a minimum of 1 second and a maximum of 7 seconds . 2. Styling and Formatting